List of ''Transformers: Robots in Disguise'' (2015 TV series) characters

The Bee Team

• Ultra Bee (voiced by Will Friedle) - Ultra Bee is the combination of Bumblebee, Strongarm, Sideswipe, Grimlock, and Drift that was first formed in "King of the Hill, Part 2" when all five Autobots piling on top of Heatseeker combined with ambient radiation from a nuclear waste disposal site and the explosion of Heatseeker's missiles resulted in this formation. Subsequent episodes had Fixit attempting to recreate this formation until "Combine and Conquer", though it is later revealed in "Moon Breaker" that Ultra Bee can only form "when all are one", meaning that, even without Fixit's machinery, the Bee Team must have their individual minds set on one thought.
  • Bumblebee (voiced by Will Friedle^[1]) - The main protagonist of the series who transforms into a yellow and black Griffin Motors 1995 Windblazer, which is similar to the Chevrolet Camaro, and also forms the head and torso of Ultra Bee. At the start of the series, Bumblebee was working on the Cybertron police force due to the fact that the new Autobot High Council had issues with the Autobots. While helping Strongarm to apprehend Sideswipe, Bumblebee gets a vision of Optimus Prime that draws Bumblebee back to Earth with Strongarm and Sideswipe along for the ride. He finds that the Decepticon prison ship Alchemor has crash-landed on Earth and its Decepticon inmates have escaped. Upon allying with the Mini-Con Fixit, the Decepticon prisoner Grimlock & humans Denny Clay and his son Russell. Bumblebee leads them in rounding up the escaped Decepticon prisoners. As the leader of the Autobot team on Earth, he is constantly obsessed with living up to Optimus' expectations when leading his team, especially when he is trying to keep order in the group. A running gag of the series' first season is when he is trying to create a catchy rallying cry, which often results in them being bad puns or just lame in general, before he settles on "Rev up and roll out!".
  • Sideswipe (voiced by Darren Criss^[1]) - The rebellious "bad boy" of the Bee Team who transforms into a red street racing-ready sports car and also forms the left arm of Ultra Bee. Sideswipe was first seen being apprehended by Bumblebee and Strongarm for his driving scratching up the grounds at Kaon Plaza. After Bumblebee gets a vision of Optimus Prime that draws Bumblebee back to Earth, he brings Strongarm and Sideswipe along for the ride. Incompetent and sometimes lazy, he often risks missions, even the lives of his own teammates, all for the sake of his boredom but he has also proven his loyalty to the team and he makes up for mistakes he makes with his speed and agility, but is also known to be claustrophobic as revealed in "Even Robots Have Nightmares" and has a fear of abandonment and loneliness as shown in "Exiles".
  • Strongarm (voiced by Constance Zimmer^[1]) - A cadet in the Cybertronian Elite Guard and Bumblebee's subordinate who transforms into a blue and white police-modified SUV and also forms the right arm of Ultra Bee. She often worries about abiding by the law and following protocol which in some cases jeopardizes the mission. She is essentially the complete opposite of Sideswipe and the two teenage robot superheroes often jab at each other.
  • Grimlock (voiced by Khary Payton^[1]) - A Dinobot serving as the team's muscle who transforms into a mechanical Tyrannosaurus and also forms the legs of Ultra Bee to his disappointment. Originally imprisoned on the Alchemor as a Decepticon for committing property damages, he later becomes an Autobot after gaining the team's trust and eventually gains Autobot symbols in place of his Decepticon symbols following "True Colors". He is not very bright and often attempts to solve problems with his fists rather than strategy but he has shown that he learns from his mistakes and can be relied upon whenever the team needs him.
  • Drift (voiced by Eric Bauza^[1]) - Formerly a Decepticon known as Deadlock, Drift is an Autobot bounty hunter who transforms into an orange samurai-like car resembling a cross between a Bugatti Veyron and a Gumpert Apollo and also forms the sword of Ultra Bee. In "Hunting Season", he came to Earth to collect the bounty placed on Bumblebee. He later joins the team to study under Bumblebee in "One of Our Mini-Cons is Missing". His figure is that of a samurai, generally doing things the honorable way, which includes fighting fairly (much to his disadvantage). Although it is not seen very often early on, Drift has shown he is capable of being both a strict yet fair sensei and a caring father figure. He eventually departs Earth to accompany Optimus Prime on investigating Cybertron's current ruling body in "Moon Breaker".
    • Slipstream and Jetstorm (both voiced by Roger Craig Smith^[1]) - Drift's Mini-Con students who can both transform into buzzsaw vehicles that can attach themselves onto Drift's wrists. Both of them were originally ex-criminals that were the students of Shadow Raker before being taken in by Drift. They, along with Drift, joined the Bee Team from "One of Our Mini-Cons is Missing" until "Moon Breaker", when they and Drift depart Earth to accompany Optimus Prime on investigating Cybertron's current ruling body.
• Fixit (voiced by Mitchell Whitfield^[1]) - A hyperactive yet faulty-wired Mini-Con who originally served as the steward and guard of the Alchemor and later serves as the Autobots' caretaker and medic. He also provides the identification of the escaped Decepticons and reports their location. He develops a close friendship with Russell and Denny as he is rarely out in the field. Because Fixit is so small, he does not have a proper vehicle mode and instead turns into a variety of tools. However, he transforms into a drill-type vehicle in the toyline.

All-Stars

• Optimus Prime (voiced by Peter Cullen^[1]) - The last of the Primes, the former leader of the Autobots, and Bumblebee's mentor who transforms into a red and blue semi-truck with an accompanying trailer. Originally thought to have died after the events of Transformers Prime Beast Hunters: Predacons Rising, he was later resurrected by the Primes of the past to help stop their rogue brother Megatronus, whose evil would result in the destruction of both Earth and Cybertron. Following his return to Earth, he co-leads the Autobots alongside Bumblebee as his equal. In season two, he becomes leader of an Away Team, leading Sideswipe, Windblade, Drift, Slipstream, and Jetstorm. Following the two-part "Decepticon Island", he leaves Earth for Cybertron with the intent of investigating the new regime ruling over the planet. Optimus Prime is called back to Earth in "Strongarm's Big Score" to help with the crisis of the Scavengers, and arrives at the end of "Mighty Big Trouble" to help rescue Bumblebee and the Autobot Mini-Cons from Starscream. He eventually departs yet again to hand Starscream, his bounty hunters, and the Scavengers over to Cybertronian authorities following "Worthy". In "Sphere of Influence", Optimus is contacted by the Bee Team to explain the myth of the sphere of Doradus. He later returns once more in "Moon Breaker" to recruit Drift, Slipstream, and Jetstorm in accompanying him on his investigation of Cybertron's ruling body; at the end of that same episode, he takes the Stunticons and several other Decepticons that have been captured on Earth at the time with them to be brought back to Cybertron as well.
• Jazz (voiced by Arif S. Kinchen^[1]) - A friend of Bumblebee and Sideswipe's idol who transforms into a race car. In "Can You Dig It?", he came to Earth after receiving the distress signal from the Alchemor after it crashed and was sent there by the Autobot High Council. He is the only Autobot in the first season who does not stay on Earth as he had to return to Cybertron to smooth things out with the Autobot High Council. In "Enemy of My Enemy," Jazz returns to help Optimus Prime and the Bee Team when the Autobot High Council plans to invade Earth.
• Windblade (voiced by Kristy Wu in Season 1-2,^[2] Erica Lindbeck in Season 3) - A charming yet self-centered female Autobot who transforms into a red and black VTOL jet, making her the only Autobot in the series with a vehicle form capable of flight. She first helps the Autobots in "The Buzz on Windblade" before she officially joins the team following the two-part "Battlegrounds". She was originally sent by Primus to help fight against the evil which would result in Earth's and Cybertron's destruction. Following the two-part "Decepticon Island", she leaves Earth for Cybertron alongside Optimus Prime, Ratchet, Undertone, and Toolbox due to feeling homesick. Prior to meeting The Bee Team, Windblade spent her time capturing Decepticons solo as well as gathering supplies and storing them at her various caches. During season 3, the Bee Team have made it their mission to locate and secure Windblade's caches after noticing some of them have failed security measures and several Decepticons have escaped as a result. She reappears in "Moon Breaker", where she reveals the location of her very first cache on Earth's moon.
• Ratchet (voiced by Jeffrey Combs)^[3] - A veteran Autobot medic and a long-time friend of Optimus Prime who transforms into a white and red ambulance resembling a Ford E-350. He was sent by the new Autobot High Council to hunt down the war criminals where he encounters Bumblebee's group in "Decepticon Island, Pt. 1". Following "Decepticon Island, Pt. 2", he and Undertone leave Earth for Cybertron alongside Optimus Prime, Windblade, and Toolbox.
  • Undertone - A silent Mini-Con partnered with Ratchet who transforms into a buzzsaw vehicle in the show. In the toyline, he is a Cyclone Mini-Con who turns into a sphere.
• Bulkhead (voiced by Kevin Michael Richardson) - An Autobot Wrecker and one of Bumblebee's old teammates who transforms into a green SUV resembling a Lamborghini LM002. While he was mentioned in "Brainpower" and "History Lessons," Bulkhead appeared in the comics where he and Arcee are with Ultra Magnus at the time when Team Bee was dealing with the Cybercomrade Sect. He appeared in the cartoon episode "Sick As A Bot" where he was summoned to Earth to meet Optimus Prime. Bulkhead went on a mission with Grimlock that involves seeking out Wingcode who unleashes malware on the Bee Team. After Wingcode's defeat, Bulkhead sticks around on Earth to await for Optimus Prime and joins Grimlock in punching rocks in a quarry.

Other Autobots

• Toolbox (voiced by Mitchell Whitfield)^[3] - One of the older model Mini-Cons that were assigned to guard the Alchemor alongside Fixit. When the back part of Alchemor crashed on Earth, Toolbox and the Mini-Cons with him were enslaved by Glowstrike and Scorponok so that they can repair the Alchemor in their plans to plunder the galaxy. Upon hearing Steeljaw mention Bumblebee's group in "Decepticon Island" Pt. 1, Toolbox escaped and made his way to Denny's scrapyard. After the Decepticons of Decepticon Island are defeated in "Decepticon Island" Pt. 2, Toolbox and the other Mini-Cons repaired the Alchemor as they left Earth for Cybertron alongside Optimus Prime, Windblade, Ratchet, and Undertone.
  • Cinch (voiced by Mitchell Whitfield)^[3] - A Mini-Con worker on the Alchemor that was enslaved by Glowstrike's group. Following the two-part episode "Decepticon Island", he and the rest of his co-workers leave Earth for Cybertron in the repaired Alchemor.
• Blurr (voiced by Max Mittelman) - A Velocitronian Autobot recruit originally on the Rescue Bots team who transforms into a blue and white Ferrari FXX Evoluzione racing car. He serves as Sideswipe's intern from "Blurred" until "Bee Cool". He and Sideswipe first met in the Rescue Bots episode "The Need For Speed".
• Nightra (voiced by Lori Petty) - A former Autobot cadet at the Kaon Police Academy that was a fellow student of Strongarm until she was expelled by the academy's proctors for swiping a keyfile. Afterwards, she became a bounty hunter who first appears in "Guilty as Charged" being pursued by Blastwave. It was later revealed that Nightra stole Blastwave's Light Bender and Bounty Hunter ID in order to pose as a bounty hunter. With help from Team Bee, Blastwave apprehended Nightra. Afterwards, Strongarm told Bumblebee that Nightra was no longer the friend she knew. Her character model is an altered version of Strongarm's character model.
• Blastwave (voiced by Roger Craig Smith) - An Autobot bounty hunter who is unable to speak. He first appeared in "Guilty as Charged" where he pursues Nightra to Earth upon her stealing his Light Bender and Bounty Hunter ID. Nightra lied to the Autobots that Blastwave is a criminal who escaped from Trypticon Prison. When Team Bee trapped Blastwave, he used sign language to let them know the truth. Now realizing that they've been tricked, Team Bee released Blastwave who helped apprehend Nightra. His character model is an altered version of Megatronus' character model, but with a different head and chest.
• Dropforge (voiced by David Sheinkopf) - An Autobot Mini-Con detective and Strongarm and Nightra's former mentor at the Kaon Police Academy who is portrayed as a stereotypical hard-boiled detective. He was first mentioned in "Get a Clue" and "Guilty as Charged" before making his first physical appearance in "Five Fugitives" where he and the Cybertron Police Officers are given orders to arrest the Bee Team. It turns out that Dropforge and those with him were being mind-controlled by a signal from Cybertron which Strongarm manages to jam. After Dropforge and his fellow police officers help fight Steeljaw who gets away, Dropforge and his men have their frequencies altered by Fixit. Before departing back to Cybertron, Dropforge tells Bumblebee and Strongarm to keep an eye on Sideswipe as he looks shifty.

Autobots appearing in other media

• Ultra Magnus - The leader of the Team Prime in Optimus' absence, a former sergeant in the Cybertron Elite Guard, Optimus's former second-in-command, and the leader of the Autobot Wrecker commando unit who transforms into a light blue long-nose truck. While he was shown to have a statue of himself on Cybertron in "Pilot" Pt. 1, he was featured in the comics where he took control of Team Prime and watched Bumblebee's work from their ship that's orbiting Earth. After Bumblebee had apprehended Spinhead, Ultra Magnus, Arcee, and Bulkhead visited Bumblebee when it came to the Cybercomrade Sect. In addition, Ultra Magnus has the Autobot Spectrosynth as his double-agent in the group. In "Enemy of My Enemy", Ultra Magnus was among the Autobots that the Decepticons making up the Autobot High Council had blacklisted for helping Optimus Prime. He has also appeared in the toyline.
• Arcee - A female Autobot, one of Bumblebee's old teammates, and Strongarm's idol who transforms into a blue motorcycle resembling a Kawasaki Ninja 250R. Arcee appeared in the comics where she and Bulkhead are with Ultra Magnus at the time when Team Bee was dealing with the Cybercomrade Sect. In "Enemy of My Enemy," Arcee was among the Autobots that the Decepticons making up the Autobot High Council had blacklisted for helping Optimus Prime. Her image was drawn to incorporate elements of her G1 counterpart.

Autobots cameos

The following Autobots made cameos as images in "Enemy of My Enemy" where the Decepticons making up the Autobot High Council had blacklisted them for helping Optimus Prime:

• Blades - A Rescue Bot who transforms into a helicopter.
• Blaster - An Autobot who appeared in "Aligned" novels, where he was eaten by Piranacons.
• Bluestreak - An Autobot who resembles his G1 counterpart. He was originally planned to appear in Prime before the decision for Bumblebee to regain his voice was made.
• Boulder - A Rescue Bot who transforms into a bulldozer.
• Brawn - An Autobot who appeared in "Aligned" novels, where he was eaten by Piranacons.
• Chase - A Rescue Bot who transforms into a police car.
• Cliffjumper - An Autobot who was an old comrade of Arcee. Despite being killed by Starscream at the start of the previous series, Cliffjumper was among the Autobots that the Decepticons making up the Autobot High Council blacklisted for helping Optimus Prime.
• Elita One - A female Autobot who previously appeared in The Covenant of Primus.
• Fallback - An Autobot who resembles his G1 counterpart, contrary to being a redeco of Breakdown in the Prime toyline.
• Firestar - A female Autobot who is a recolored version of Moonracer.
• Gears - An Autobot who previously appeared in the Nintendo 3DS version of Rise of the Dark Spark.
• Grapple - An Autobot who resembles his G1 counterpart.
• Heatwave - A Rescue Bot who transforms into a fire truck. He has also been mentioned by Bumblebee in "Battlegrounds, Part 1" and Blurr in "Bee Cool".
• High Tide - An Autobot positioned in Griffin Rock.
• Hoist - A Rescue Bot resembling a recolored version of Trailbreaker with a modified head and new shoulder fins.
• Hot Rod - An Autobot who resembles his G1 counterpart.
• Hound - An Autobot resembling his G1 counterpart
• Huffer - An Autobot who resembles his G1 counterpart, contrary to being a retool of Ironhide in the Prime toyline.
• Inferno - An Autobot who previously appeared in The Ultimate Pop-Up Universe and resembles his G1 counterpart.
• Ironhide - An Autobot who has previously appeared in many "Aligned" media.
• Jetfire - An Autobot who was once colleagues with Starscream.
• Knock Out - A Decepticon medic that defected to the Autobots at the end of the previous series.
• Kup - An Autobot Wrecker resembling his G1 counterpart.
• Mirage - An Autobot who resembles his G1 counterpart, contrary to being a redeco of Legends class Revenge of the Fallen Sideways in the Prime toyline.
• Omega Supreme - A massive Autobot who previously appeared in War for Cyebrtron.
• Perceptor - An Autobot scientist who previously appeared in Fall of Cybertron and Rise of the Dark Spark.
• Pipes - An Autobot who resembles his G1 counterpart.
• Prowl - An Autobot who is a recolored version of Bluestreak, drawn to resemble his G1 counterpart.
• Quickshadow - A Rescue Bot who transforms into a British sports car.
• Red Alert - An Autobot who is a retool of Sideswipe, but with a laser canon on his shoulder and a new head.
• Ricochet - An Autobot who previously appeared in the Japanese Adventure toyline as a redeco of Jazz.
• Salvage - A Rescue Bot who transforms into a garbage truck.
• Sandstorm - An Autobot who resembles his G1 counterpart.
• Seaspray - An Autobot Wrecker. Despite having his ship blown up by Dreadwing in the previous series, Seaspray was among the Autobots that the Decepticons making up the Autobot High Council blacklisted for helping Optimus Prime.
• Skids - An Autobot who resembles his G1 counterpart.
• Sludge - A Dinobot resembling his G1 counterpart.
• Slug - A Dinobot resembling his G1 counterpart. He has also appeared in the Japanese Adventure toyline as a redeco of his Animated counterpart Snarl.
• Smokescreen - An eager Autobot and one of Bumblebee's old teammates whose image is drawn to resemble his G1 counterpart. He also appears in "Pilot (Pt. 1)" as a statue, and makes a flashback appearance in the tie-in comics.
• Snarl - A Dinobot resembling his G1 counterpart.
• Springer - An Autobot Wrecker resembling his G1 counterpart.
• Sunstreaker - An Autobot who previously appeared in The Ultimate Pop-Up Universe and "Aligned" novels, and resembles his G1 counterpart.
• Swerve - An Autobot who, contrary to being a redeco of Breakdown in the Prime toyline, resembles a recolor of Gears with a new head to resemble his G1 counterpart.
• Swoop - A Dinobot resembling his G1 counterpart. He has also appeared in Japanese Adventure toyline as a redeco of his Animated counterpart.
• Tailgate - An Autobot that worked with Arcee. Despite being killed by Airachnid in the previous series, Tailgate was among the Autobots that the Decepticons making up the Autobot High Council blacklisted for helping Optimus Prime. He is drawn to resemble his G1 counterpart, contrary to being a redeco of Cliffjumper in Prime.
• Tracks - An Autobot resembling his G1 counterpart.
• Trailbreaker - An Autobot who resembles his G1 counterpart, contrary to being a retool of Ironhide in the Prime toyline.
• Tuneup - An original Autobot based on an early version of the character who would eventually become Fixit.
• Wheelie - A small Autobot who resembles his G1 counterpart.
• Wheeljack - An Autobot Wrecker and an old friend of Bulkhead whose image is drawn to resemble his G1 counterpart. He also appears in "Pilot (Pt. 1)" as a statue, has been referenced in "History Lessons", and makes a flashback appearance in the tie-in comics.
• Windcharger - An Autobot who previously appeared in the Nintendo 3DS version of Rise of the Dark Spark, and is a recolored version of Tailgate.
• Wreck-Gar - An Autobot from the planet Junkion who previously appeared in "Aligned" novels and resembles his G1 counterpart.

Major Decepticons

• Steeljaw (voiced by Troy Baker^[1]) - A gray wolf-motif Decepticon who transforms into a wolf snout-like off-road vehicle. He is the recurring antagonist of the series and is Bumblebee's new nemesis in a vein which echos the rivalry with Optimus Prime and Megatron. As revealed in "Lockout", Steeljaw was imprisoned on the Alchemor for trying to incite a rebellion. He wishes to rule Earth as a safe and peaceful haven for Decepticons. Steeljaw leads his own team throughout the first season to defeat the Autobots and further his plans. He is often cool and charismatic, but he has been shown be hot-headed, as he (like his predecessor Megatron), does not tolerate mission failures or betrayals, and he got angry when Thunderhoof tried to kill Clampdown in "Sideways". At the end of "Lockout", he joins forces with Megatronus in hopes to control Earth for himself, only to get enraged after Megatronus revealed to Steeljaw that he had lied in "Battlegrounds: Part 2". Steeljaw attempted to avenge himself on Megatronus but was hurled far away into the distance. His pack was subsequently recaptured by the Autobots. Steeljaw later returned in "Metal Meltdown", where he discovered another group of Decepticon fugitives led by Glowstrike and Scorponok, who he introduces himself to. Steeljaw is notable for having been captured once by the Bee Team but not put back into stasis and knows about the use of subsonics. In "Misdirection", Steeljaw frees various Decepticons from stasis to bolster Glowstrike's ranks. He eventually seizes control of Decepticon Island in the two-part episode "Decepticon Island" only to be defeated and finally captured by Bumblebee and Optimus Prime. In "Exiles," Steeljaw (alongside Underbite, Thunderhoof, Quillfire, and Clampdown) have been enlisted by their mysterious benefactors on Cybertron to capture Bumblebee after they have arranged for Steeljaw and his selected followers to be pardoned. He is able to escape the Autobots in "Prisoner Principles" where he steals a set of nuclear fuel rods yet wishes to deliver them to Soundwave personally in "Collateral Damage". During the threat of the Decepticon infiltrators that make up the Autobot High Council, Steeljaw helped Team Bee and the All-Stars fight their forces. By the end of the series, Steeljaw is still at large on Earth as Team Bee mobilizes to catch him.
• Glowstrike (voiced by Grey Griffin)^[3] - A female Insecticon who transforms into a robotic firefly and serves as an antagonist in the second season. She possesses the ability to fire energy blasts from her hands and skirt-like feature and is frustrated by the apparent incompetence of her various underlings. She leads a crew of fugitive Decepticons while based in a crashed aft section of the Alchemor that landed in a swamp. Following Kickback and Saberhorn's failure in "Metal Meltdown", Glowstrike and Scorponok end up meeting Steeljaw. In "Misdirection," Glowstrike finds that Steeljaw has freed several Decepticons to bolster her ranks. In the two-part episode "Decepticon Island", she is overthrown by Steeljaw and is later captured by the Autobots alongside the other Decepticons.
  • Scorponok (voiced by Victor Brandt)^[3] - A Decepticon gladiator who can transform into a robotic scorpion and is capable of using his bladed tail in robot or animal mode. As revealed in "Misdirection," Scorponok was imprisoned on the Alchemor for terrorizing outlying communities on Cybertron that are largely outside the reach of the law by tearing them down and intimidating the inhabitants for simple enjoyment. In "Metal Meltdown", he is shown to be partners with Glowstrike. In "Misdirection", Scorponok fought Bumblebee and Grimlock alongside Crazybolt, Slicedice, Bludgeon, and Clout only to be defeated and imprisoned in stasis pods. While official Cybertronian police records indicate that he was a prisoner aboard the Alchemor, Fixit had no record of Scorponok on his manifest.
  • Saberhorn (voiced by Fred Tatasciore)^[3] - An Insecticon pirate who transforms into a robotic rhinoceros beetle. He wields dual sabers and relishes "sporting" combat against worthy adversaries. He was imprisoned on Alchemor for plundering cargo vessels, but Fixit had no record of this on his manifest. Bumblebee's team first encountered him while he was on a mission to recover thermanite for use in repairing Glowstrike's base in "Metal Meltdown". He later praises Steeljaw when he brings various Decepticons freed from stasis to bolster Glowstrike's ranks in "Misdirection". He is later overthrown with Glowstrike by Steeljaw in the two-part episode "Decepticon Island" and is later captured by the Autobots.
• Starscream (voiced by Steven Blum)^[4] - The Air Commander of the Decepticon Seekers and Megatron's former second-in-command who transforms into a fighter jet. He was last seen being attacked by the Predacons Predaking, Darksteel, and Skylynx in Transformers Prime Beast Hunters: Predacons Rising. However, as revealed in "Mini-Con Madness", Starscream "led" Darksteel and Skylynx into Darkmount where he "turned a stash of weapons against them" and killed them. He then discovered a lab where the Weaponizer Mini-Cons were kept in stasis. While at Darkmount, he gained his new form based on his Generation One and Transformers: Animated counterparts and returned to Earth, accompanied by Shadelock, RoughEdge, and Razorhorn, in order to reclaim the Weaponizers, who had escaped from him as soon as he released them, so he could acquire enough power to exact revenge on Megatron for the way he was treated. After retrieving the Dark Star Saber from the Scavengers and capturing Bumblebee, Fixit, Slipstream, and Jetstorm in "Mighty Big Trouble", he eventually captures Aerobolt, Sawtooth, Buzzstrike, Windstrike, Bashbreaker, Lancelon in "Mini-Con Madness" and later Tricerashot in "Worthy". Despite Power Surge linking with all Weaponizers, he is defeated by the Autobots-accompanied by with Aerobolt Power Surge linking with Optimus after the Weaponizer leader was extracted from Starscream by Sideswipe and the Autobot Mini-Cons-and captured by the end of "Worthy".
• Scavengers - The Scavengers are a group of Decepticon relic hunters who arrived on Earth to look for relics from the Great War and struck up a partnership with some Weaponizer Mini-Cons, who are not pleased with their violent ways. They were eventually abandoned by the Weaponizers who defected to the Autobots and knocked into the ocean by Starscream with the Dark Star Saber in "Mighty Big Trouble." In "Mini-Con Madness," the Scavengers try to capture the Mini-Cons by fighting the Autobots, but Starscream outdoes them and captures most of the Mini-Cons. In "Worthy", the Scavengers are finally defeated by the Autobots with help from Tricerashot, and are loaded onto the Autobot ship Prime Force One to be sent to Cybertron.
  • Clawtrap (voiced by André Sogliuzzo) - The leader of the Scavengers who shares the same body-type as Clampdown minus the eyestalks. He was by far the only Scavenger not discovered by the Autobots until "Mini-Con Madness."
  • Paralon (voiced by Jason Spisak) - A Decepticon Scavenger who shares the same body-type as Scorponok, but with a purple color scheme and head mold based on the Beast Wars Scorponok. He is known for looking to find his next big score before somebody else can beat him to it and steal the glory that is rightfully his. To this end, he will do just about anything to gain a reputation, even brutalize his own kind to get what he wants. Paralon was discovered by the Bee Team while scavenging in the ruins of Outpost Omega One in "History Lessons."
  • Scatterspike (voiced by Robin Weigert) - A rowdy female Decepticon Scavenger who shares the same body-type and abilities as Quillfire, but with a red and purple color scheme. In addition, Scatterspike's quills make anything that are struck by them magnetic. Scatterspike was discovered by Strongarm and Fixit while scavenging in Mount St. Hilary in "Strongarm's Big Score."
  • Thermidor (voiced by Jim Cummings) - A pirate-mannered Decepticon Scavenger who shares the same body-type as Bisk with a blue color scheme and a different head. He was the original owner of the Scavengers' ship before it was commandeered by Clawtrap. Thermidor was discovered by Grimlock followed by the rest of the Bee Team while scavenging near a mountain monastery in "Pretzel Logic".
• Stunticons - A team of stunt vehicle Decepticons who are the main antagonists of the "Combiner Force" season until Cyclonus took place as the main antagonist for the rest of the "Combiner Force" season and can combine to form Menasor (voiced by Travis Willingham), a destructive yet unstable and unbalanced combiner. By the episode "Moon Breaker," the Stunticons are defeated by Ultra Bee and are taken back to Cybertron by Optimus Prime to be incarcerated.
  • Motormaster (voiced by Travis Willingham) - The leader of the Stunticons who transforms into a silver and purple futuristic tanker truck and also forms the torso of Menasor. He arrived on Earth in order to claim its roads for himself and his minions.
  • Heatseeker (voiced by Mikey Kelley) - A Stunticon whose wild and crazed personality is based on Wildrider, the resident insane Stunticon in most Transformers series. He can shoot guided missiles, and transforms into an SUV whose color scheme is based on Offroad, Wildrider's present-day replacement from the "Combiner Wars" toy line. Heatseeker also forms the top half of Heatmark and the left leg of Menasor. He was first discovered by the Bee Team in the two-part "King of the Hill".
  • Dragstrip (voiced by Maurice LaMarche) - The self-proclaimed second-in-command of the Stunticons who can use nitro boosts, and transforms into a yellow and purple futuristic sports car. He also forms both the top half of Dragbreak (which is reversed in the toy line) and the right arm of Menasor. He and Wildbreak were first discovered by the Bee Team in "Bee Cool".
  • Wildbreak (voiced by Dave Wittenberg) - A nervous and cowardly Stunticon based on Breakdown, the cowardly Stunticon in most Transformers series, mainly the Transformers: Generation One and Transformers: Animated continuities. He can create friction waves, and shares the same body-type as his partner Dragstrip but in a blue and orange color scheme based on the Breakdown from the Transformers Prime CGI cartoon. He also forms the bottom half of Dragbreak (which is reversed in the toy line) and the left arm of Menasor. He and Drag Strip were first discovered by the Bee Team in "Bee Cool".
  • Slashmark (voiced by David Kaye) - A Stunticon based on Dead End, the gloomy Stunticon in most Transformers series. He can summon energy rings, and shares the same body-type as Heatseeker, but in a red, blue, yellow and white color scheme based on the Generation 1 Breakdown and the Transformers: Animated Breakdown that differs from Wildbreak's orange and blue color scheme. Slashmark also forms the bottom half of Heatmark and the right leg of Menasor. He was first discovered by the Bee Team in "Disordered Personalities".
• Soundwave (voiced by Frank Welker) - A Decepticon spy and communications officer who transforms into a blue UAV drone aircraft resembling an MQ-9 Reaper and later a futuristic truck based on his Generation One counterpart,^[5] although he retains his head design in both bodies. He was trapped in an alternate dimension known as the Shadowzone by the end of Transformers: Prime until he returned in "Portals" when Fixit had an accident with the Groundbridge. Bumblebee's group were able to send him back into the Shadowzone before he could try to make contact with Megatron. Soundwave returns in the "Combiner Force" season as a major antagonist where he dispatches the Mini-Cons Stuntwing, Trickout, Hi-Test (who was banished for failure), and Goldgear to steal Decepticon Hunters from Bumblebee, Sideswipe, and Strongarm which would be part of his "project", which is revealed in "Collateral Damage" to be a Beacon Generator intended to try to summon Megatron except Soundwave was unaware that Megatron had left the Decepticon business to start a new life. He is also allied with Steeljaw's mysterious benefactors on Cybertron, as shown in "Prepare for Departure". In "Collateral Damage" Soundwave gains a new body armor and builds the Beacon Generator possibly after killing Skyquake's Terrorcon form in the Shadowzone and using his parts. He is finally defeated by Bumblebee. Alongside Laserbeak, Soundwave was taken back to Cybertron by Optimus Prime to stand trial.
  • Laserbeak - A bird-like Decepticon-allied Mini-Con surveillance drone under the command of Soundwave who can detach from his chest. He escaped the Shadowzone alongside Soundwave, but was later sent back in "Portals". He returns in "Collateral Damage", having been upgraded into an Activator Mini-Con and sporting a new body based on his Generation One counterpart. He is finally defeated by Optimus Prime and Hi-Test. Alongside Soundwave, Laserbeak was taken back to Cybertron by Optimus Prime to stand trial.
• Galvatronus (voiced by Harry Lennix) - Galvatronus is the combined form of Cyclonus, Cyberwarp, Skyjack, Treadshock, and Riotgear, the Decepticons who posed as the Autobot High Council. Galvatronus seems to be more mentally stable than Menasor. Galvatronus is defeated by Ultra Bee when Cyberwarp rebels and is broken up into his five components.
  • Cyclonus (voiced by Harry Lennix) - The leader of the Autobot High Council and the true main antagonist of the entire show. He can transform into a Cybertronian starfighter and can form the torso of Galvatronus. Cyclonus led the Decepticons that made up the Autobot High Council in their plots to invade Earth from pardoning Steeljaw and some of his accomplices to destroy the Bee Team to orchestrating Soundwave's freedom from the Shadowzone so that he can contact Megatron to lead the Decepticon forces while unaware that Megatron has left the Decepticon business to start a new life.
  • Cyberwarp (voiced by Brooke Goldner) - A female member of the Autobot High Council. She can transform into a Cybertronian VTOL-pod and forms the right arm of Galvatronus. During Galvatronus' fight against Ultra Bee, Cyberwarp rebels causing Ultra Bee to defeat Galvatronus. Upon Galvatronus' defeat, Cyberwarp expresses hope that both sides can work together instead of fighting.
  • Skyjack - A female member of the Autobot High Council. She can transform into a Cybertronian VTOL-pod and forms the left arm of Galvatronus. Skyjack is a retooled version of Cyberwarp where she sports a different head.
  • Treadshock - A member of the Autobot High Council. He can transform into a Cybertronian off-road vehicle and forms the right leg of Galvatronus.
  • Riotgear - A member of the Autobot High Council. He can transform into a Cybertronian off-road vehicle and forms the left leg of Galvatronus. Riotgear is a retooled version of Treadshock where he sports a different head.

Decepticons introduced in Season One

• Underbite (voiced by Liam O'Brien^[1]) - A Texan-accented Decepticon Chompazoid (a Gorgonopsia-motif Cybertronian) who transforms into a Cybertronian tank-like vehicle. He was imprisoned on the Alchemor for devouring Nuon City. Underbite eats metal to become more powerful. He is the first Decepticon the Autobots encounter on Earth in the two-part pilot. Underbite is captured by the end of "Pilot" Pt. 2, but escapes with the help of Steeljaw in "True Colors" and later joins his team. When he fought Grimlock in "Sideways", the Dinobot tricked him into eating some plastic, which made him sick. He is later captured again at the end of the two-part episode "Battlegrounds". In "Exiles," Underbite is among the Decepticons released by Steeljaw's mysterious benefactors on Cybertron who arranged for him to be pardoned and is tasked in capturing Team Bee, though he is recaptured (for the third time) in "Prisoner Principles". In "Something He Ate," Underbite gets loose and eats a part of the Space Bridge that causes him to teleport uncontrollably. It took a strategy by the Bee Team to defeat Underbite and get him back into his stasis pod.
• Hammerstrike (voiced by David Kaye^[1]) - A hammerhead shark-motif Sharkticon pirate who transforms into a submarine and wishes to rule Earth's seas. He is captured by Bumblebee and Grimlock in "Trust Exercises".
• Bisk (voiced by Khary Payton^[1]) - A cocky and arrogant lobster-motif Decepticon who transforms into a futuristic muscle car. He is quickly captured by the Autobots in "More Than Meets the Eye", but is later freed by Steeljaw and brought to Glowstrike in "Misdirection". In "Bumblebee's Night Off", Bisk causes a heist during a Rear Axle concert and is recaptured by Bumblebee's group alongside Hammer and Anvil.
• Chop Shop (voiced by David Hunt^[1]) - A Decepticon combiner who is able to split his body into five spider-like Mini-Cons. He is captured by the Autobots with the exception of one part in "More Than Meets the Eye". In "The Trouble With Fixit", the right arm component successfully reunited with the rest of Chop Shop, allowing him to briefly escape with some Energon cubes before being recaptured by Fixit.
  • "Righty" (voiced by Will Friedle)^[3] - The right arm component of Chop Shop who evades capture in "More Than Meets the Eye". In "Even Robots Have Nightmares", Righty attempts to release the rest only to get captured by Nightstrike. He is last seen saving Denny and Russell from Nightstrike before crawling away. As of "The Trouble with Fixit," the right arm component is reunited with Chop Shop.
• Terrashock (voiced by Kevin Michael Richardson^[1]) - A brutish Buffaloid (a bison-like Cybertronian) who transforms into an armored truck and was an enforcer for the Decepticon Contrail prior to his incarceration on the Alchemor. In "W.W.O.D.?", he is discovered by humans and brought to the city museum. Upon being freed, Terrashock worked to try to make contact with Contrail. Terrashock is later captured by the Autobots.
• Thunderhoof (voiced by Frank Stallone^[1]) - An elk-motif Decepticon and a former crime lord back on Cybertron who transforms into a tractor with a thresh attachment. Back on Cybertron, Thunderhoof had Scowl and Silverhound as his mob enforcers. As revealed in "Sideways", he was incarcerated on the Alchemor after Clampdown tipped off the authorities. He later joins Steeljaw's team in "As the Kospego Commands!". He is captured at the end of the two-part episode "Battlegrounds", but is later freed by Steeljaw in "Misdirection". Although Thunderhoof is not pleased to see Steeljaw after what happened during the Megatronus incident, Steeljaw states that he has seen the error of his ways and brings him to Glowstrike. He is eventually recaptured following "Decepticon Island, Pt. 2". In "Exiles," Thunderhoof is among the Decepticons released by Steeljaw's mysterious benefactors on Cybertron who arranged for him to be pardoned and is tasked with capturing Bee Team, though he is recaptured (for the third time) in "Prisoner Principles".
• Filch (voiced by Constance Zimmer^[1]) - A Corvicon (a crow-like Decepticon) who transforms into a robotic crow has an obsession to collect anything shiny. She is captured by the Autobots in "Collect 'Em All." Her robot mode is briefly seen in the show, but a better view of it appears in the "Tiny Titans" portion of the toyline.
• Minitron - A Cyber-Tick who controls Cybertronians by biting them. In "True Colors", he worked for Steeljaw to possess Grimlock and is captured by the Autobots.
• Springload (voiced by John Steven Rocha^[1]) - An insane Amphiboid (a frog-type Cybertronian) who transforms into a compact pickup truck. He is obsessed with finding the lost city of Doradus, though everyone claims it a myth. Springload was incarcerated on the Alchemor for attacking museum staff and guards. He is built with acidic skin as a defense mechanism. Springload is soon captured by Bumblebee and Strongarm in "Rumble in the Jungle" and briefly escapes his stasis pod along with Quillfire only to be captured again in "One of Our Mini-Cons is Missing". He is later freed a second time by Steeljaw and brought to Glowstrike in "Misdirection". In "Bumblebee's Night Out", he evaded capture while trying to bring supplies to Steeljaw. Despite his absence in "Decepticon Island Pt. 2", he is capable of escape at the Autobots and fled, he reappears in "Sphere of Influence" where he obtains the Sphere of Doradus only for the relic to be destroyed and for him to be captured for the third time.
• Ped (voiced by Eddie Deezen^[1]) - A worm-motif Decepticon who transforms into a tanker truck and was apparently bullied by others of his kind. Ped has the ability to create sinkholes when underground. Ped is captured by the Autobots with Jazz's help in "Can You Dig It?".
• Quillfire (voiced by Andy Milder^[1]) - A rebellious porcupine-motif Decepticon anarchist whose weapons consist of toxic quills and transforms into an armored pick-up truck that is similar to that of Bulkhead's. He is captured by the Autobots in "Adventures in Bumblebee-Sitting!" and briefly escapes his stasis pod along with Springload only to be captured again in "One of Our Mini-Cons is Missing". He is later freed a second time by Steeljaw and brought to Glowstrike in "Misdirection," but is recaptured for the third time in "Impounded" alongside Back and Forth. In "Exiles," Quillfire is among the Decepticons released by Steeljaw's mysterious benefactors on Cybertron who arranged for him to be pardoned and is tasked with capturing Bee Team, though he is recaptured (for the fourth time) in "Prisoner Principles".
• Fracture (voiced by Kevin Pollak^[1]) - A Decepticon bounty hunter and Drift's rival who transforms into a purple motorcycle. He originally came to Earth to collect the bounty placed on Bumblebee in "Hunting Season". Fracture later joins Steeljaw's team sometime prior to "Sideways" and is captured at the end of the two-part "Battlegrounds". Fracture is one of a very few Decepticons who not only has neither an animal motif nor a beast mode, but was also not imprisoned on the Alchemor to begin with. He and his Mini-Cons are captured by the Autobots by the end of the two-part episode "Battlegrounds."
  • Airazor and Divebomb (voiced by Roger Craig Smith and Khary Payton^[1] respectively) - Fracture's Mini-Con servants who can both transform into torpedoes that attach to Fracture's shoulders. They are both captured by the end of the two-part episode "Battlegrounds."
• Malodor (voiced by Daniel Roebuck)^[3] - The leader of a group of four striped skunk-motif Decepticons known as the Skunkticons who can spray a liquid chemical out of their tails that blinds their target. He and his crew all transform into muscle cars resembling the 1969 Chevrolet Nova. Malodor and his Skunkticons are all captured by the Autobots in "Out of Focus".
• Clampdown (voiced by Jim Cummings^[1]) - A cowardly crab-motif Decepticon that turns into a modified Ford Focus hatchback. As an informant on Cybertron, Clampdown will rat anyone out to get out of jail including Thunderhoof. Clampdown eventually ended up on Alchemor for trying to blackmail a member of the Autobot High Council. He is captured at the end of the two-part episode "Battlegrounds." Clampdown is later freed by Steeljaw in "Misdirection" and brought to Glowstrike who seemed unimpressed by him. He is later recaptured in "Decepticon Island, Pt. 1". In "Exiles," Clampdown is among the Decepticons released by Steeljaw's mysterious benefactors on Cybertron who arranged for him to be pardoned and is tasked with capturing Bee Team, though he is recaptured (for the third time) in "Prisoner Principles".
• Nightstrike (voiced by Tom Kenny)^[3] - A polite but murderous Decepticon who transforms into a robotic vampire bat and uses sound waves to entice the worst fears of his prey and suck their Energon. He is captured by the Autobots in "Even Robots Have Nightmares". Until the release of his "Tiny Titans" toy, it was unsure whether or not his beast mode was actually a robot mode motif.
• Vertebreak (voiced by Charlie Schlatter)^[3] - A snake-motif Decepticon mad scientist who can transform into a train. He was imprisoned on the Alchemor for his illegal cyber-grafting experiments. In his debut episode "Some Body, Any Body", Vertebreak removes Sideswipe's head and uses his body for his own nefarious purposes. He is later captured by the Autobots.
• Octopunch (voiced by Ted Biaselli)^[3] - An octopus-motif Decepticon pirate who transforms into a submarine. Octopunch was imprisoned on the Alchemor for crashing ships just so he can raid them. He is captured by the Autobots in "Deep Trouble".
• Groundpounder (voiced by John DiMaggio)^[3] - A hot-headed gorilla-motif Decepticon and former Cybertronian gladiator who transforms into an excavator. He was also a pro-wrestler of which Fixit was a fan of. Groundpounder was arrested for going on a rampage after being accused of cheating and was incarcerated on Alchemor. He is soon captured by the Autobots after being defeated by Grimlock in "The Champ". Groundpounder is later freed by Steeljaw and brought to Glowstrike in "Misdirection", but is recaptured in the two-part "Decepticon Island."
  • Headlock (voiced by Eric Bauza)^[3] - Groundpounder's devious coach who transforms into a forklift truck. He is also the real reason behind Groundpounder's cheating. He is captured by the Autobots after being defeated by Fixit in "The Champ". Along with Overload, Headlock is one of a few prisoners that does not have an animal motif in robot mode or a beast mode.
• Kickback (voiced by Liam O'Brien)^[3] - A psychotic, yet idiotic grasshopper-themed Insecticon who can transform into a Blown Top Drag racing car. Going by his namesake, Kickback is highly trained in karate due to his powerful kicks. In "Lockout", Steeljaw and his team used him as bait, yet he was able to escape. He returns in "Metal Meltdown" where he is shown to have become a member of Glowstrike's crew and has a crush on one of the generic Decepticons on Glowstrike's side. Next to Steeljaw, Kickback was the only other Decepticon featured in the first two seasons to have never been captured. He is captured offscreen in "Decepticon Island" Pt. 2.
• Scowl (voiced by Mark Hildreth)^[3] - A Dinobot who transforms into a mechanical Ankylosaurus and uses a Kaboomer. He was a former mob enforcer who worked for Thunderhoof. Much like Grimlock, Scowl likes to smash things for his own entertainment. In "Similarly Different," Grimlock briefly befriended Scowl due to them being Dinobots until his betrayal. He is later captured by the Autobots after being defeated by Grimlock.
• Scratch - A black panther-motif Decepticon with laser claw attacks who can transform into a modified 1987 Ford Mustang with monstrous tires. He is quickly apprehended by Windblade when she first appears in "The Buzz on Windblade". He was never named on-screen only going by the nickname "Fancyclaws" until his name was confirmed on Adam Beechen's website.
• Zizza (voiced by Jackée Harry)^[3] - A tyrannical queen bee-motif Decepticon who uses a toxin to control the minds of her victims. Both her robot and beast modes are bee-themed. Zizza was incarcerated on the Alchemor for mind-controlling Cybertronians into doing her bidding. She is later captured by the Autobots with Windblade's help in "the Buzz on Windblade".
• Pseudo (voiced by Eric Bauza)^[3] - A silent, but sneaky ladybug larva-themed Decepticon Shifter and spy with the ability to shapeshift into anything or anyone he desires. He is captured by the Autobots in "Ghosts and Impostors".

Decepticons introduced in Season Two and the Mini-Series

• Overload (voiced by Dave Fennoy)^[3] - A Shakespearean-mannered Deception who transforms into a Cybertronian tank. Overload was a Decepticon spy during the Cybertronian War whose efforts greatly damaged the Autobot installations until he was discovered by Optimus Prime which led to him by getting incarcerated aboard the Alchemor. His actions also resulted in Bumblebee suffering harm leaving the Autobot scout with a long-standing grudge. Bumblebee later convinces his Mini-Con partners to turn against him where they managed to defeat Overload in the two-part "Overloaded". He is later freed by Steeljaw and brought to Glowstrike in "Misdirection", but is recaptured by the Autobots in "Decepticon Island" Pt. 2.
  • Backtrack and Ransack (both voiced by Steven Blum)^[3] - A pair of Cyclone Mini-Cons who join Overload in the two-part "Overloaded". They can both transform into spheres that can attach to Overload's wrists. They are virtually identical to each other except for their color schemes. Backtrack and Ransack were later convinced by Bumblebee to turn against Overload.
• Polarclaw (voiced by Steven Blum)^[3] - A ballistic polar bear-motif Decepticon with a sonic roar who transforms into an SUV-type snowmobile with a snowplow attached to the front. His appearance and behavior are a direct homage to the Beast Wars character of the same name with his robot mode being an altered version of Steeljaw's robot mode. Polarclaw was imprisoned on the Alchemor for his activities as a crime boss on Cybertron. Upon his escape, he holed himself up at the Arctic Circle near a research base. Polarclaw was defeated and captured by Optimus Prime and the Away Team in the two-part episode "Overloaded".
• Crazybolt (voiced by James Arnold Taylor)^[3] - A horned lizard-motif Decepticon arsonist who can transform into a monstrous muscle car resembling a cross between a 1969 Pontiac Firebird and a 1983 Chevrolet Monte Carlo. Crazybolt ended up on the Alchemor for leveling Steel City as the buildings there were impending his mobility. Upon escaping Alchemor during the crash, he continues to set his obstacles on fire. After setting a fire in the park during a fight between Bumblebee and Grimlock in "Suspended", he was able to get away. He later fought the Autobots a second time before being captured in "Misdirection."
  • Slicedice (voiced by Gary Anthony Williams)^[3] - Crazybolt's devoted lizard-motif Mini-Con partner. He fought Bumblebee and Grimlock alongside Crazybolt only to be captured in "Misdirection".
• Razorpaw (voiced by Jonathan Adams)^[3] - A bossy yet nefarious and intimidating puma-motif Decepticon who is Swelter and Glacius' current boss. Razorpaw has the ability to siphon Energon from other Transformers. He tried to drain the energy from Windblade before he was defeated by Optimus Prime in "Cover Me". His character design is a recolored version of Scratch's character model minus the tail.
  • Swelter and Glacius (voiced by Robbie Rist and Yuri Lowenthal respectively) - A pair of Decepticon Mini-Cons who can both transform into torpedoes and share the same body-type as Divebomb. Swelter possesses fire-elemental abilities while Glacius possesses ice-elemental abilities. Of the pair, Swelter resents the fact that Razorpaw doesn't acknowledge or reward him and Glacius for their efforts. On the other hand, Glacius seems content in being Razorpaw's lackey. They are eventually defeated after Optimus Prime slammed two cars between them in "Cover Me".
• Torpor - A Decepticon Mini-Con who is seen rigging some communication device when he is confronted by Bumblebee's group in "Brainpower". He managed to blast Bumblebee and Strongarm with his eye beams before being taken down by Grimlock. His character design is an altered version of Airazor's character model.
• Simacore (voiced by Matthew Yang King)^[3] - A temperamental Bornean orangutan-motif Decepticon scientist whose shared the same body-type as Groundpounder. Simacore was incarcerated on the Alchemor after an experiment of his went wrong and he took his frustration out on his colleagues. He is captured after being tricked by Grimlock in "Brainpower", yet escapes his stasis pod during its malfunction as revealed in "The Fastest Bot Alive". He then used Vertebreak's old lab to create an army of Mini-Con clones who resembles Axiom and Theorem in order to get revenge on Grimlock. During the confrontation in Vertebreak's old lab, Simacore is defeated by Grimlock and is captured again by the Autobots.
  • Axiom and Theorem (both voiced by Jeff Bennett)^[3] - Simacore's monkey-motif Mini-Con partners. Axiom has a haughty personality whereas Theorem has a snooty personality. They are both captured in "Brainpower".
• Bludgeon and Clout (both voiced by Dee Bradley Baker)^[3] - A pair of medieval-themed Cyclone Mini-Cons partnered with Scorponok who can transform into spiked spheres. Like Backtrack and Ransack, they are virtually identical to each other except for their color schemes. Bludgeon and Clout fought Bumblebee and Grimlock alongside Scorponok, Crazybolt, and Slicedice only to be defeated and imprisoned in stasis pods in "Misdirection".
• Hammer and Anvil (both voiced by Carlos Alazraqui)^[3] - A pair of Cyclone Mini-Cons who accompanied Bisk into committing a heist during a Rear Axle concert. Hammer's alternate form is a dragon/phoenix creature and can transform into a sphere while Anvil's alternate form has a gargoyle-motif where he can transform into a spiked sphere. They are both captured alongside Bisk in "Bumblebee's Night Off".
• Silverhound (voiced by Eric Bauza)^[3] - Silverhound is a bulldog-motif Decepticon who served as a mob enforcer of Thunderhoof like Scowl. His character model is an altered version of Terrashock's character model where he has ears in place of the horns and has a wider, more pronounced snout to create a vaguely canine-looking face. Silverhound is captured in "Impounded".
• Back and Forth (both voiced by Eric Bauza)^[3] - A pair of Cyclone Mini-Cons with magnetic abilities who can transform into spheres. Back's robot mode resembles a four-legged creature with stubby arms while Forth's robot mode resembles a lizard-like creature. They accompanied Quillfire into fighting Bumblebee's group and are both captured in "Impounded".
• Stockade (voiced by Gregg Berger)^[3] - A badger-motif decorative Decepticon general. He tried to stage a military coup, but failed after he was defeated by Optimus Prime and was incarcerated on the Alchemor. He is captured after being defeated by Sideswipe, Jetstorm, and Slipstream in "Graduation Exercises".
  • Major Mayhems (collectively voiced by Eric Bauza, Gregg Berger, Roger Craig Smith, and Mitchell Whitfield) - A legion of identical Cyclone Mini-Con foot soldiers under the command of Stockade who can all transform into spheres. They are captured by the end of "Graduation Exercises".
• Vehicons (collectively voiced by Jim Cummings and Fred Tatasciore)^[3] - A legion of identical Decepticon foot soldiers residing in Decepticon Island that make up the bulk of Glowstrike's army. Some transform into sports cars resembling the EcoJet Concept and others transform into Cybertronain fighter jets. In Transformers: Prime, they were generally commanded by Megatron and shared a common uniform color scheme of black and purple. In this series, their color schemes vary among themselves. They are all most likely captured by the end of "Decepticon Island, Pt. 2".
• Shadelock (voiced by Kirk Thornton) - A Decepticon bounty hunter under the command of Starscream whose character model is a modified version of the Miner Vehicons' character model. While he is completely fine with committing truly atrocious acts as part of a contract, he does not really seem to take any pleasure from such cruelties as it is all just part of the job. He is captured by the end of "Worthy".
  • RoughEdge - A former Autobot under the command of Starscream, judging by the fact that his Autobot insignia appears to have been scratched through; according to Adam Beechen, these scratches are from years of combat situations, and are not meant to be political statements. However, RoughEdge is unable to explain this very easily because of a "vocal condition" he has. He is captured by the end of "Worthy". His character model is an altered version of the character models used for the Cybertronian Museum Guards from "Pilot" Pt. 1.
  • Razorhorn - An Insecticon soldier under the command of Starscream who transforms into a robotic Hercules beetle. He is captured by the end of "Worthy". His character model resembles the character models for the Insecticons from Transformers: Prime, including Hardshell and Bombshock. His name is never mentioned on the show until it was confirmed on Adam Beechen's website.

Decepticons introduced in Season Three

• Crustacion (voiced by Chris Edgerly) - A shrimp-like Decepticon thief who shares the same body-type as Ped, but with a different head. He was originally captured by Windblade as he arrived on Earth and was later taken into the Bee Team's custody in "Defrosted". His stash of stolen Shanix (a form of Cybertronian currency) was eventually retrieved by the Bee Team in "Out of the Shadows" after Slipstream convinced Shadow Raker into obtaining it from human authorities.
• Ragebyte (voiced by Christopher Swindle) - A Sharkticon scientist who shares the same body-type and eyes as Hammerstrike, but with a different color scheme and possesses the electro-breath that he can shoot from his mouth. Ragebyte was known for his experiments that involve meshing Cybertronian technology with whatever he can find to invent destructive weapons. He was originally captured by Windblade as he arrived on Earth, but was later taken into the Bee Team's custody in "Blurred".
• Zorillor (voiced by Michael Yurchak) - A lone wolf Skunkticon gangster who shares the same body-type as Malodor but with a different color scheme. He was incarcerated in the Alchemor while in possession of the Sphere of Doradus which he referred to as his "pal", yet did not join any Decepticon groups on Earth. Sometime later, he collaborated with Springload in "Sphere of Influence." He was eventually captured by Team Bee.
• Dragbreak (voiced by Maurice LaMarche) - The combined form of Dragstrip, who makes up the top half, and Wildbreak, who makes up the bottom half. However, the toy line has Wildbreak forming the top half and Dragstrip forming the bottom half. He solely appears in "Bee Cool", and his voice is similar to Dragstrip's.
• Boostwing (voiced by James Arnold Taylor) - A Corvicon who shares the same body-type as Filch, but with a different color scheme, a beak-like kibble on his head, and a smaller size. With the aid of his two brothers, Boostwing hatched a plan to acquire the brightest shinies from the Crown City Gold Depository. He was captured by Strongarm in "Get a Clue".
  • Jacknab and Pilfer (both voiced by Robin Atkin Downes) - A pair of Corvicons and Boostwing's brothers who share the same body-type as him but with different color schemes, beak-like kibbles on their heads, and a smaller size. They are both captured during an attempt to raid the Crown City Gold Depository in "Get a Clue".
• Shadow Raker (voiced by Ian James Corlett) - An Insecticon who transforms into a beetle and shares the same body-type as Saberhorn, but with a different head. He is Drift's former mentor as well as the former master of Slipstream and Jetstorm. Shadow Raker possesses the ability to shoot webs from his mouth which he uses to trap his prey. He is captured after being defeated by Drift in "Out of the Shadows".
• Flamesnort (voiced by Robin Atkin Downes) - A noble bearded dragon-like Decepticon who shares the same body-type as Crazybolt, but with a different color scheme. Flamesnort has been on Earth since the Great War and guards the seismic-shock warhead which would be used against the "evils of the Autobots." He was captured by Bumblebee and Fixit in "The Golden Knight".
• Heatmark (voiced by Mikey Kelley) - The combined robot form of Heatseeker, who makes up the top half, and Slashmark, who makes up the bottom half. When Heatmark was introduced in "The Golden Knight", his voice was a unison of his components. When he reappears in "Combine and Conquer", his voice is changed to be similar to Heatseeker's.
• Mini-Con Clones - An army of sparkless clones of Axiom and Theorem that were created by Simacore in "The Fastest Bot Alive". They are destroyed by the Bee Team who collect their remains before alerting authorities of Vertebreak's old lab.
• Wingcode (voiced by Constance Zimmer) - A Decepticon who turns into a robotic vampire bat and specializes in using malware on Cybertronians upon unleashing a cloud from her body. Wingcode infected most of the Bee Team before being defeated by Grimlock and Bulkhead. She shares the same body-type as Nightstrike, but with a different color scheme.

Minor Decepticons

Many of these Decepticons are either mentioned but not seen or resemble characters from this and the previous show in recolored and/or altered form.

• "That One with all the Eyes" - An as-yet-unnamed multi-eyed Decepticon inmate of the Alchemor. It is said to have been captured in "Hunting Season".
• Ratchet's Captive - An unidentified Decepticon criminal captured by Ratchet and Undertone who they chased to Earth prior to encountering Clampdown and later Bumblebee's group in "Decepticon Island" Pt. 1. Ratchet mentions that he was after this Decepticon for years.
• Decepticon Island Decepticons - The generic inhabitants of Decepticon Island that work for Glowstrike and Scorponok.
  • Decepticon Island Chompazoids - A pair of unnamed Chompazoids residing in Decepticon Island who serve as Glowstrike and Scorponok's "guard dogs". They are both identical in design to Underbite, but with different lower jaws. One is burgundy while the other is light brown. They are both most likely captured by the end of "Decepticon Island" Pt. 2.
  • Decepticon Island Insecticon - An unnamed Insecticon soldier residing in Decepticon Island with a black, bright-green, and teal color scheme who shares the same body-type as Razorhorn. He is most likely captured by the end of "Decepticon Island" Pt. 2.
  • Decepticon Island Cyclones - A pair of unnamed Cyclone Mini-Cons residing in Decepticon Island who share the same body-type as Ransack and Backtrack. One is purple while the other is black and green. They are both most likely captured by the end of "Decepticon Island" Pt. 2.
  • Kickback's Crush - An unnamed female Decepticon residing in Decepticon Island who transforms into an orange and blue helicopter resembling an RAH-66 Comanche. As shown in "Metal Meltdown," Kickback seems to have a crush on her. Her character design resembles the character model for Airachnid, but without the spider legs. She is most likely captured by the end of "Decepticon Island" Pt. 2.
  • Decepticon Island Sharkticon #1 - A Sharkticon residing in Decepticon Island who is identical in design to Hammerstrike, but with yellow eyes and a silver and purple color scheme based on the Generation 1 Sharkticons. In "Portals", Steeljaw had to beat him up in order to prove his loyalty to Glowstrike (who claimed that the Sharkticon was acting against her interests). He is most likely captured by the end of "Decepticon Island" Pt. 2.
  • Decepticon Island Sharkticon #2 - Another Sharkticon residing in Decepticon Island who is also identical in design to Hammerstrike, but with a brown and tan color scheme while also sharing the same yellow eyes as the other Decepticon Island Sharkticon. He is most likely captured by the end of "Decepticon Island" Pt. 2.

Decepticons appearing in other media

The following Decepticons that were incarcerated on the Alchemor have appeared in the comics and mobile games associated with this show and are listed in alphabetical order:

• Abominus - An ape-themed Decepticon and survivalist who Windblade apprehended in the past and had been incarcerated on Alchemor as mentioned in the comic issue "Autobot World Tour." The Bee Team encountered Abominus in the Himalayas where local monster hunters that had a reality TV show mistook him for a Yeti.
• Brakepad - A sloth-themed Decepticon thief with hypnotic abilities and energy-draining abilities that appears in the comics. He was incarcerated on Alchemor for his successful thefts.
• Buzzclaw - An Insecticon with chainsaws for hands that appeared in the mobile game.
• Cybercomrade Sect - The Cybercomrade Sect is a Decepticon criminal organization on Cybertron that appears in the comics. Ultra Magnus and Spectrosynth once worked as double agents in order to find their leader.
  • Overhead - A female Buffaloid crime boss who is the leader of the Cybercomrade Sect.
  • Clipshade - A Doberman Pinscher-themed Decepticon crime boss and member of the Cybercomrade Sect. He is secretly a stage performer named Spectrosynth who worked with Ultra Magnus as a double-agent.
  • Flamefeather - A bird-like Decepticon arsonist and member of the Cybercomrade Sect.
  • Razorgrille - An intelligent Croctobot (a crocodile-themed Cybertronian) who is a member of the Cybercomrade Sect that works as Overhead's henchman.
  • Retrofit - A rookie member of the Cybercomrade Sect who mostly does errands for the group.
  • Skullcruncher - A dumb Croctobot who is a member of the Cybercomrade Sect that works as Overhead's henchman.
  • Spinhead - A dragonfly-themed Insecticon and master conspiracy theorist who is a former member of the Free Will Faction and a member of the Cybercomrade Sect. He transforms into a helicopter.
  • Transit - A brutish rhinoceros-themed thug who has ties to the Cybercomrade Sect. While his vehicle mode is a bus, his robot mode borrows design elements from Cliffjumper from Transformers: Prime.
• Infernox - An Insecticon with flamethrowers for hands that appears in the mobile game.
• Needler - A spiky Insecticon/Mini-Con that appears in the mobile game.
• Ransack II - This version of Ransack is an Insecticon that appears in the mobile game.
• Ronin - The Ronin are a band of ex-Decepticon mercenaries who will sell out anybody to anyone (regardless of faction) for profit.
  • Forager - A raccoon-themed Ronin.
  • Foxtrot - A fox-themed Ronin.
  • Stilts - A crane-themed Ronin.
• Scorpinok - A scorpion-themed Decepticon that appears in the mobile game and can fire a destructive beam from his tail. He is not to be confused with Scorponok.
• Scuzzard - A Scavengebot (a vulture-themed Cybertronian) that appears in the comics and can get larger and energized from the metal he eats. He was incarcerated on Alchemor for laying waste to a good part of Kaon.
• Shocksprocket - A small insectoid Decepticon that has a powerful electric attack and appears in the comics.
• Skinkbomb - A skink-themed Decepticon and former demolitions expert that appears in the comics. He was incarcerated on Alchemor for doing "unauthorized demolitions."
• Skrapnel - A lumbering Insecticon brute that appears in the mobile game.
• Slink - A cat-themed Deception gang leader that appears in the comics.
  • Sneak - A weasel-themed Decepticon that appears in the comics and is a member of Slink's gang.
  • Snitch - A rat-themed Decepticon that appears in the comics and is a member of Slink's gang.
• Waspinator - A wasp-themed Insecticon that appears in the mobile game.

Thirteen

The Thirteen are the original Cybertronians that were created by Primus during his fight with Unicron. Most of the Thirteen currently reside in the Realm of the Primes.

• Micronus Prime (voiced by Adrian Pasdar)^[3] - The first Mini-Con who was among the original thirteen Cybertronians created by Primus during his fight with Unicron and currently resides in the Realm of the Primes. In "Out of Focus", he trains Optimus Prime to help him prepare for the fight against Megatronus. Following Megatronus' apparent demise in "Battlegrounds" Pt. 2, Micronus appeared in "Overloaded" Pt. 1, requesting Optimus Prime to return the additional power that he and the other Primes had granted him, in which he agrees, despite Bumblebee's protests. After taking back the power, it left Optimus in a weakened state. Before departing back to the Realm of the Primes, Micronus scanned Optimus Prime and states that he'll recover.
• Vector Prime (voiced by Troy Baker)^[3] - A member of the Thirteen who is the guardian of time and space. Like Micronus and the other Primes, he was created by Primus during his fight with Unicron and currently resides in the Realm of the Primes. In "Battlegrounds" Pt. 1, he empowered Optimus Prime enough to leave the Realm of the Primes to help fight Megatronus.
• Megatronus / The Fallen (voiced by Gil Gerard)^[3] - One of the original Primes of Cybertron who, alongside his twelve colleagues, was created at the beginning of time by Primus to defeat Unicron, after which turned his back on the others by murdering Solus Prime and later became the first Decepticon. Originally banished to another realm, he successfully escaped his imprisonment with the help of Steeljaw and his team by the end of "Battlegrounds" Pt. 1 where he planned to take the remains of Unicron's Anti-Spark from Earth's core and combine it with the AllSpark from Cybertron (destroying both worlds in the process) to control the universe. His plan fails and he is apparently killed in the process in "Battlegrounds" Pt. 2, though not without indicating beforehand that he received additional power from a great source.
• Alpha Trion - A member of the Thirteen who appears in "Enemy of My Enemy" as one of the Autobots that the Decepticons making up the Autobot High Council had blacklisted for helping Optimus Prime.

Autobot High Council

The Autobot High Council is the ruling body of Autobots that runs Cybertron and utilize an army of foot soldiers. Following the reconstruction of Cybertron after Unicron's defeat and Megatron leaving the Decepticon business resulting in the Decepticon disbandment, a new Autobot High Council was formed to govern the planet. While they fully blame Optimus Prime's group for the ruining of Cybertron, they also buried Optimus Prime's legacy and pushed the former members of the team into obscurity. It was later revealed that the members of the Autobot High Council were actually Decepticons who were the mysterious benefactors of Soundwave and Steeljaw's group. When these Decepticons in their combined form of Galvatronus are defeated, the formation of a new Autobot High Council was underway.

Weaponizer Mini-Cons

The Weaponizer Mini-Cons are a special breed of Mini-Cons who can empower their hosts while in weapon mode while controlling their bodies. They originally sided with the Decepticon Scavengers while being hunted down by Starscream; during the majority of their appearances, they are unaligned. They eventually allied themselves with the Autobots in "Mini-Con Madness", though they become Autobots themselves by the end of "Worthy"; in that same episode, the Weaponizers leave Earth in search of a new home.

• Aerobolt (voiced by Steven Blum) - The bird-motif leader of the Weaponizer Mini-Cons who can transform into a white and blue chestplate that can create a suit of energy armor. He is partnered with Optimus Prime.
• Buzzstrike (voiced by Rick Pasqualone) - A Weaponizer Mini-Con who can transform into a red axe. He was partnered with Paralon before siding with Bumblebee.
• Sawtooth (voiced by Crispin Freeman) - A Good-hearted shark-motif Weaponizer Mini-Con who can transform into a dark blue trident. He was partnered with Scatterspike before siding with Strongarm.
• Tricerashot (voiced by Robbie Rist) - A Triceratops-motif Weaponizer Mini-Con who can transform into an orange blaster cannon. He was partnered with Thermidor before siding with Grimlock.
• Bashbreaker - A Weaponizer Mini-Con who can transform into a large light blue hammer. He was partnered with Clawtrap. There is also a variant in the toyline that portrays him as a Decepticon.
• Windstrike - A Weaponizer Mini-Con who can transform into a blue sword. He is partnered with Sideswipe.
• Lancelon - A knight-themed Weaponizer Mini-Con who can transform into a yellow and purple sword. He is partnered with Drift in the cartoon and Starscream in the toyline where he is portrayed as a Decepticon.

Activator Mini-Cons

The Activators are another special breed of Mini-Cons who can empower a host in vehicle mode, enabling them with flight capabilities and other enhancements. In the cartoon, a majority of them are unaligned yet are allied with the Decepticon Soundwave despite being packaged with Autobots in the toyline.

• Stuntwing - An Activator Mini-Con employed by Soundwave to steal Bumblebee's Decepticon Hunter in the two-part "King of the Hill", which he does by powerlinking to Bumblebee while he is in vehicle mode. He is then sent to retrieve a set of nuclear fuel rods stolen by Steeljaw in "Prisoner Principles", yet the Decepticon wishes to deliver them to Soundwave personally. Despite being allied to Soundwave, Stuntwing is packaged with Bumblebee in the toyline as an Autobot.
• Trickout - An Activator Mini-Con with wheels for feet employed by Soundwave to retrieve a second Decepticon Hunter in "Defrosted", which he accomplishes after obtaining Sideswipe's weapon in "The Great Divide". Despite being allied to Soundwave, Trickout is packaged with Strongarm in the toyline as an Autobot.
• Hi-Test - An Activator Mini-Con employed by Soundwave to retrieve a third Decepticon Hunter in "Guilty as Charged", which he fails to do so, and subsequently flees and banished from Soundwave in fear of termination. He later returns in "Collateral Damage", where he powerlinks with Optimus Prime while he is in vehicle mode so he could defeat Laserbeak. After Soundwave is taken down as well, Hi-Test departs to the Shadowzone so he could live without fear of ever being hunted. Despite being unalligned in the cartoon, Hi-Test is packaged with Optimus Prime in the toyline as an Autobot.
• Goldgear - An Activator Mini-Con sharing the same body-type as Hi-Test, but with a different color scheme and robot mode kibble. He is employed by Soundwave to retrieve Strongarm's Decepticon Hunter in "Railroad Rage". He reappears in "Prepare for Departure", where he opens a Shadowzone portal for Soundwave to make contact with Steeljaw's pack.