List of Young Justice characters

Founding members

The initial six main characters were chosen by the producers, from a list of potential candidates of 50 to 60 DC Comics teenaged superheroes.^[1] The criteria consisted of age, powers, personality, cultural icon status, and dynamics.^[2] An additional regular, Zatanna, was introduced partway through the first season, and Rocket was added at the end of the first season.^[1]

• Aqualad / Kaldur'ahm^[3] (voiced by Khary Payton) – In Season 1, Kaldur 'Ahm (or "Kaldur" for short) was the sixteen-year-old leader of the team. His powers, channeled through the tattoos on his arms, are a mixture of Atlantean sorcery and science. He displays super strength, durability, as well as the ability to breathe and speak underwater, typical of Atlanteans. He also possesses the ability to form hard water constructs through the use of his Atlantean water bearers and to generate electricity.^[4] He was selected as the initial leader for the Team, but stated that he did not want to remain leader and wished to turn over leadership to Robin when he was ready, saying that it was his destiny to lead this team.^[5] In Season 2 (set five years in the future), Aqualad is Nightwing's mole in his father Black Manta's organization in order to infiltrate the Light and discover who their partner is. His "defection" is based upon his being the son of Black Manta (which Aquaman covered up) as well as the death of Tula in an earlier Team mission. When Miss Martian fights Aqualad later, her psychic abilities caused her to learn about Aqualad and Tigress' true mission with the psychic attack leaving Aqualad in an apparently-catatonic state. His body was carried away by Tigress. But soon in order to cure his son (thanks to Tigress' suggestion), Deathstroke and Tigress capture Miss Martian and manage to restore him. During the summit, he and Tigress were revealed to be the spies and after their mission is complete, Aqualad returns to his post as leader once again. Designation: B02.
• Robin / Nightwing / Dick Grayson (voiced by Jesse McCartney) - Known as Robin throughout Season 1; Grayson was, though only thirteen,^[3] the most experienced member of the team.^[6] He does not possess any superpowers, however, he is an excellent hand-to-hand combatant, tactician, and a technological genius. He has a flippant personality, and can be heard laughing in combat or when sneaking up on villains in order to unnerve and startle them. He repeatedly plays with the English language, particularly with words which cease to function without prefixes, such as "disaster" ("aster"), "overwhelmed" ("whelmed"), and "distraught" ("traught"). Batman had forbidden Robin from revealing his secret identity to the team^[7], though Kid Flash was aware of it. Robin acts as team leader when Aqualad is unable to. Aqualad sees Robin as reluctant to lead the team, feeling that he doesn't know enough. "Eventually he shows that he is a natural born leader. And that's just part of what you'll see from Dick Grayson". In Season 2 (set five years later in the future), Dick has assumed the identity of Nightwing while Tim Drake has assumed the mantle of Robin. Nightwing remains on the team as their leader and trainer, assigning and participating in missions. Dick encourages Tim to have confidence in his leadership skills, but the latter is apprehensive about doing so. After "Endgame", Dick decides to take a leave of absence after Wally's sacrifice and leaves Barbara in charge if they need any help. Designation: B01.
• Kid Flash / Wally West^[8] (voiced by Jason Spisak) – During Season 1, Kid Flash is the team's fifteen-year-old speedster. He has enhanced speed,^[7] although he has not fully mastered his abilities, often falling down while running at high speeds due to a misstep. Kid Flash cannot vibrate his molecules through solid objects like the Flash and gets a bloody nose if he attempts to.^[7] He is a flirt, beginning with M'gann and extending to any woman he comes into contact with. Kid Flash and Robin know each other outside the team, even knowing each other's secret identities. Wally likes to collect souvenirs from the team's missions, such as T. O. Morrow's robotic eye and Cheshire's mask.^[7][9] Ava Dordi, of the Palo Alto Voice notes that Jason Spisak "captures the Lighthearted essence of Kid Flash well".^[10] In Season 2 (set five years in the future), Kid Flash has given up the superhero life and is in a relationship with Artemis with the two living and attending college together. Wally does however, assume the guise of Kid Flash once again during the crisis involving Neutron wherein he assists Impulse and the two Flashes (Jay Garrick and Barry Allen) with containing a major explosion. It is revealed that Wally was aware of Nightwing's plan to fake Artemis's death so she could be placed in deep cover alongside Aqualad. He return to the mission during "Bloodlines" to stop Neutron and resume back into the team during "Summit". During "Endgame", he with Flash and Impluse manage to control the Magnetic Field Disruptor but due to his slower speed, the chrysalis' energy attacks him, causing him to disappear. Designation: B03.
• Superboy / Kon-El / Conner Kent (voiced by Nolan North) – Superboy is introduced as a sixteen-week-old clone of Superman (later revealed to be a hybrid clone of Superman and Lex Luthor) created by Project Cadmus. Although he does not have all of Superman's abilities, he has super strength, invulnerability, enhanced hearing,^[11] and later: infrared vision.^[5] Lex Luthor later gave Superboy a set of patches which suppresses Superboy's human DNA, giving him his full Kryptonian abilities, similar to those of Superman's; however they only last for typically an hour, and his aggression increases as well. Superboy is typically sullen, ill-tempered, grumpy, and hates being told what to do. His nonexistent relationship with Superman only adds to this anger. He becomes romantically involved with M'gann while under cover in Belle Reve.^[12] Sometime between Season 1 and Season 2, Superboy ended their relationship due to M'gann using her telepathic powers to violently extract information from enemies; even more so, that she tried to tamper with his mind to make him try to forget that they had argued about it. Five years after the events of Season 1, Superboy has remained on with the Team and his formerly apprehensive relationship with Superman has greatly improved, with Superman now referring to him as a brother. Conner is more in control of his anger, resourceful and more familiar with alien technology. Greg Weisman notes that Nolan North provides "good separation" between the dual roles he portrays as Superman and Superboy. Designation: B04.
• Miss Martian / Megan Morse / M'gann M'orzz^[13] (voiced by Danica McKellar) – Miss Martian is Martian Manhunter's teenaged (by Martian standards, though she is in her 40's in earth years) niece,^[14] as well as being an inexperienced superhero.^[8] As a Martian, she has telekinesis, telepathy, and flight. Additionally, she can shape-shift to a limited extent. She has stated that she cannot become intangible as her uncle can, implying that this is an advanced skill; but by Season 2, she had learned this power.^[7] In later episodes, Martian Manhunter discovers that her raw abilities, particularly in terms of telepathy and mind control, are potentially greater than his own. She pilots her own bio-ship, which transports the team and can become camouflaged with the surrounding area. She is kind and optimistic, but has a naive streak born of having learned about life on Earth through television shows. In line with this, she makes regular use of the catchphrase "Hello, Megan!" when suddenly realizing something. She becomes romantically involved with Superboy while working undercover with him in Belle Reve. While it is revealed to the viewer in the episode "Image" that she is concealing her identity as a non-humanoid White Martian, she finally reveals her true form to the team in the episode "Usual Suspects", though Superboy had known since they had mind-bonded in the past. Danica McKellar thinks her character is "Awesome. Like most of the characters on the show, she's dealing with two very different but coexisting aspects of her life: she's a superhero and also an insecure teenager, all at the same time."^[15] Sometime in the five-year lapse between Season 1 and Season 2, Superboy ended their romantic relationship because he does not outwardly age, as well as M'gann abusing her powers to get information from her enemies, rendering the victim in a comatose state, to the point where she's "no better than Psimon", and at some point attempted to make him forget he was upset. She has become more confident in her abilities and lost her naive streak. Garfield Logan (the current Beast Boy) from the episode "Image" has become her adopted brother after the death of his mother. However, after some thinking, she breaks up with Lagoon Boy during "Interventions" and later repairs her relationship with Superboy. Designation: B05.
• Artemis / Tigress / Artemis Crock^[16] (voiced by Stephanie Lemelin) – Artemis was the team's fifteen-year-old archer.^[8][17] Like Robin, she has no superpowers, but is very skilled with a bow and arrow. She is introduced as Green Arrow's "niece" but it is later revealed that this is not the case. Red Arrow, who knows she isn't, believes that there was good reason behind Batman and Green Arrow's decision to add her to the team, as well as their concealment of her real identity, and therefore agrees not reveal his suspicions about her to the rest of the group—but warns Artemis to not harm his friends. She is the daughter of the villain Sportsmaster and the now paraplegic ex-villain Huntress, as well as the sister of Cheshire.^[18][19] In Season 2 (set five years in the future), she and Wally West (Kid Flash) left the superhero life, and are in a relationship, with the two living and attending college together. She returns to duty, only to subsequently fake her death so she can go undercover with Aqualad within Black Manta's organization, adopting the identity Tigress, and apparently help him complete his long term mission. Nightwing supplies her with a charmed necklace crafted by Zatanna to conceal her true appearance. As part of her cover, she fakes a discreet love affair with Aqualad when questioned. After Wally's sacrifice during "Endgame", she returns to the team using her Tigress identity with her blonde hair. Designation: B07.

Expanded members

The following members were added to the team after the series premiere at different times:

• Zatanna Zatara (voiced by Lacey Chabert) – The daughter of Justice League member Zatara, she first appears in "Humanity" and sporadically through the later episodes. She permanently moves into Mount Justice in the episode "Misplaced" after her father becomes the new Doctor Fate, and is an official member of the team. Her powers, like her father's, are magical, and like her father's, her spells are spoken in reverse order. Sometime during the five-year lapse between Season 1 and Season 2, she has joined the Justice League. Designation: B08, later 25.
• Speedy / Red Arrow / Roy Harper (voiced by Crispin Freeman) – Red Arrow is the team's male archer. Like Robin and Artemis, he has no superpowers, but is very skilled with a bow and arrow. He is also the adopted son of Green Arrow. Originally Speedy, he left Green Arrow's side in "Independence Day", as a result of feeling patronized by the League, who continued to treat him and the others as sidekicks dependent on their mentors, and adopted the alias Red Arrow. He refused to join the group in "Welcome to Happy Harbor". However, he still assisted the team such as in "Targets" and is convinced by Green Arrow to join the team in "Insecurity". In the episode "Usual Suspects", he becomes the first member of the Team to join the Justice League as a full member. However, in "Auld Acquaintance", Harper is told by Vandal Savage that he is a Cadmus clone much like Superboy and was the "mole" implanted by the Light, while the original Roy Harper is in custody of the enemy. In Season 2, Roy is shown on the edge of a breakdown, still searching for his original counterpart. In the episode "Salvage", it is revealed that Roy married Cheshire and unknowingly fathered a daughter with her. Cheshire is willing to help him find his original counterpart so as to help Roy find some peace. Shortly after Roy and Cheshire flew to Tibet to find the original Roy they recover and bring him back to America, recovering in a hospital in Star City with the clone and Green Arrow watching over him. He later teams up with Cheshire to deactivate one of the Reach bombs in "Endgame" and later retires to be with his daughter. Designation: B06, later 21.
• Rocket / Raquel Ervin (voiced by Kittie in most episodes, Denise Boutte in "Intervention") – Straightforward and bold, if inexperienced, Rocket is the apprentice of the superhero Icon. She uses a piece of alien technology called an inertia belt, allowing her to store and manipulate kinetic energy. She generally uses this to fly and grant herself some super-strength and a personal force field. She joins the team in the episode "Usual Suspects", the same episode her mentor joins the Justice League. In the five years between Seasons 1 and 2, she has joined the Justice League and is engaged. Designation: B09, later 26.
• Aquagirl / Tula (voiced by Cree Summer) - A student at Atlantis's Conservatory of Sorcery and Kaldur'ahm's former girlfriend. When Kaldur began spending more time on the surface world, Tula entered into a relationship with Garth. She joined the Team during the five years in between Seasons 1 and 2, but died on a unidentified mission which left Aqualad devastated. This event was used as a ruse for him to serve as the Team's mole to uncover the secrets of The Light's unidentified partner (who turned out to be Black Beetle of the Reach). Designation: B11.
• Batgirl / Barbara Gordon (voiced by Alyson Stoner) – Originally a classmate of Dick's at the Gotham Academy. In the time between Seasons 1 and 2, she assumed the identity of Batgirl and became a member of the Team. Designation: B16.
• Beast Boy / Garfield Logan (voiced by Logan Grove) - In the Season 1 episode "Image", Garfield lives with his mother Marie who runs the Logan Reserve around the borders of Bialya and Qurac. In this episode, it is revealed that Marie Logan once starred in a television show called Hello Megan! that inspired Miss Martian's human guise and her catchphrase. Garfield is hurt when Queen Bee's jets attack and needs a blood transfusion to survive following him freeing the sick oryx and an injured wildebeest from the barn. Miss Martian changes her blood type to O negative in order to save Garfield's life. He is saved, but his blue eyes at the time turned green. Sometime before the events of Season 2, Garfield's skin turned green and he developed the ability to shape-shift into animals (ergo, the name Beast Boy) with his hero disguise having monkey-like features. In "Earthlings", it is revealed that Queen Bee caused the car accident that killed Garfield's mother. In the same episode, he is shown to be somewhat careless about blood loss, wondering if he'll get a new power from another transfusion of M'gann's blood. Designation: B19.
• Blue Beetle / Jaime Reyes (voiced by Eric Lopez) – Sometime during the five-year lapse between Seasons 1 and 2, he joined the Team. A device called the Scarab is permanently attached to his spine, providing him a battle suit and advises him on what it feels is the best course of action in many situations. However, Jaime frequently ignores this advice as it is often aimed at violent solutions to problems and is seen at these times to be talking to himself. Superboy is currently the only person that knows that Jaime is talking to the scarab; Jaime compares it to Jiminy Cricket. The scarab is believed to be the last invention made by Ted Kord before the Light killed him, but it is revealed in the episode 'Before the Dawn' that its origins lie with the alien organization known as the Reach, who seek to retrieve the scarab, which will kill Jaime. In the future, a Blue Beetle under control of the Reach is shown to have enslaved the human race which Impulse traveled back in time to prevent from happening. Though the Reach do get control of Jaime's body thanks to the Green Beetle, he, the scarab, and Green Beetle are freed from the Reach thanks to an intervention from the rest of the Team and magic from Zatanna. The scarab decides to work with Jaime as equals, preferring it over enslavement to the Reach. Designation: B22.
• Bumblebee / Karen Beecher (voiced by Masasa Moyo) – A young scientist and girlfriend of Mal Duncan. She and Mal were classmates of Superboy and Miss Martian at Happy Harbor High School. Her suit acts as armor and imbues her with bee-themed powers including shrinking, and flight. Karen often works with Professor Palmer a.k.a. the Atom; at one point, they attempted to remove the scarab from Jaime, but its defenses nearly killed them. Designation: B17.
• Guardian / Mal Duncan (voiced by Kevin Michael Richardson) – The boyfriend of Karen Beecher and classmate of Superboy and Miss Martian at Happy Harbor High School. Sometime between Season 1 and Season 2, he was brought on as mission coordinator for the team. Like Nightwing, Robin, Red Arrow, and Arsenal, Mal Duncan lacks super powers. During an encounter with Despero in "Cornered," he assumed the Guardian superhero armor which had previously belonged to Jim Harper. By the time of "War", he operates as a full member of the team as the Guardian. Designation: B24.^[20]
• Lagoon Boy / La'gaan (voiced by Yuri Lowenthal) – A student at Atlantis' Conservatory of Sorcery. Sometime during the five-year lapse between Seasons 1 and 2, he joined the Team. He and Miss Martian also became romantically involved (but broke up during Intervention). He was temporarily a prisoner of The Reach, captured by Aqualad as a way to spare his life. Lagoon Boy was later rescued during the raid on the Reach's ship. Designation: B18.
• Robin / Tim Drake (voiced by Cameron Bowen) – The third person to adopt the Robin identity, after Dick Grayson (who has since become Nightwing), and Jason Todd (who is now deceased).^[21] Nightwing acts as something of a mentor to Tim, though Tim is far more hesitant and cautious than Dick was when he was Robin. By the events of the season finale, he is in a relationship with Wonder Girl. Designation: B20.
• Wonder Girl / Cassie Sandsmark (voiced by Mae Whitman) – Wonder Woman's sidekick. She joined the team sometime between the events of Season 1 and Season 2. She is energetic and often impulsive, but a talented fighter. According to Miss Martian, after Wally's death, Cassie kissed Tim Drake and the two of them began a relationship, though apparently only Miss Martian and Superboy are aware of this. The realization of how precious and fragile life is brought about her decision. Designation: B21.
• Impulse / Kid Flash / Bart Allen^[22] (voiced by Jason Marsden) - A speedster from the future who is the grandson of the current Flash (Barry Allen). Bart is stern and determined to alter history to prevent the post-apocalyptic future from which he comes, but puts on a front as a cheerful and talkative youth to the heroes of 2016. He recites lingo from the future ("feeling the mode"). He came to their time to avert a disaster by a future Neutron. Although Bart was able to cure Neutron, he pretended that he was unable to return to his own time which was still devastated from an as-yet-unknown event. It is revealed in "Before the Dawn" that a Blue Beetle has enslaved the human race, an event that Bart is trying to change by keeping him out of the clutches of the Reach. During "Endgame", he play a huge role into stopping the Endgame weapons but with the cost of Wally. He now takes his name of Kid Flash as a memorial of Wally. Designation: B23.
• Speedy / Arsenal / Roy Harper (voiced by Crispin Freeman) – The original Roy Harper. Eight years before Season 2, it was revealed that Lex Luthor captured Speedy and amputated part of his right arm to create a clone that would serve as The Light's mole. Having fulfilled his purpose as a mole, The Light no longer had a use for him, prompting the clone to join The Team and find the original Roy. However, during the five-year transition between Seasons 1 and 2, everyone except his clone counterpart assumed The Light killed off Harper. The original Roy was found in Tibet by his clone counterpart and Cheshire. After recovery in "Satisfaction", Roy learns the whole truth behind the events of the two Seasons and recalls of dealing with Luthor in his last mission, prompting him to take vengeance. Although Roy almost succeeds, Lex anticipated this and outnumbers him. In exchange for his life, Lex gives Roy a mechanical arm filled with high-tech weapons. Roy accepts Luthor's offer minutes later upon Green Arrow and Red Arrow's arrival and adopts the persona Arsenal. After his paranoia caused the Team to be captured by the Reach, Arsenal is booted from the Team. This caused him to take up the offer to allies with the meta-humans Luthor had previously employed. After Arsenal gets the truth out of Lex Luthor during his web chat with the group about Deathstroke's secret mission, Arsenal and those with him cut off all ties with Lex Luthor and go on their own path. Designation: B25.
• Tempest / Garth^[23] (voiced by Yuri Lowenthal) – Aqualad's best friend and a student at Atlantis's Conservatory of Sorcery. Garth assisted Kaldur and Aquaman against Ocean Master and was offered the chance to become Aqualad, but declined, while Kaldur accepted. Garth continued his studies in the Conservatory and later became a lover of Tula. He joined and left the Team during the time between Seasons 1 and 2. Designation: B10.
• Static / Virgil Hawkins (voiced by Bryton James) - Virgil Hawkins is a teenage boy who was waiting at the train station to meet up with his sister until he was captured by agents of the Light and handed over to the Reach. He was rescued by the Team where he was transferred to S.T.A.R. Labs in Taos, New Mexico. When in therapy with Black Canary, Virgil unknowingly displays his manifested electrical powers when a bunch of paper clips ended up stuck together by his electrostatic abilities. After he, along with the other S.T.A.R. Labs runaways, rescues members of the Team from the Warworld, and subsequently participates in a final battle against the Reach, Static joins the Team in the episode "Endgame". Designation: B26.

"The Light"

The Light are the characters in Season 1 who directed the course of events throughout the series. The group was conceived by Vandal Savage who views himself as a first among equals.^[30] The leaders act as a board of directors, their identities known only to a select few individuals that work with them.^[31] The end goal is improve humanity and set it as a dominant race in the universe: they view heroes as interfering with the natural order of things, and that Earth must employ survival of the fittest if it intends to exist.

Among its members are:

• Vandal Savage (voiced by Miguel Ferrer) – The immortal founder and leader of The Light.
• Ra's al Ghul (voiced by Oded Fehr) – Member of The Light and leader of the League of Shadows. Artemis says that Ra's al Ghul is supposed to be a gentleman.
• Lex Luthor (voiced by Mark Rolston) – Member of The Light, CEO of LexCorp, and archenemy of Superman. He played a part in the creation of Superboy by donating his DNA (to stabilize the uncontrollable Kryptonian half). Lex Luthor was also responsible for the real Roy Harper missing half of his right arm in order to further the cloning projects. At the end of the second season, he is named Secretary General of the United Nations after helping the Team and the Justice League stop the Reach's plot.
  • Mercy Graves - Lex Luthor's cybernetic and silent bodyguard.
• Queen Bee (voiced by Marina Sirtis) – Member of the Light and dictator of Bialya. In this show, Queen Bee possesses the ability of persuasion over most men and some women. She is the first to discover Miss Martian's true form and uses this to blackmail her through the first season. It was her military's attack that led to Beast Boy's origin and Queen Bee later murders his mother in retaliation.
  • Psimon (voiced by Alan Tudyk) - The right hand of Queen Bee who has telepathic powers. He often enjoys making the pun "Psimon says", based on the children's game, right before forcing someone to do his bidding. His function for The Light includes extending the range of Queen Bee's influence and being the most useful combatant against telepaths. To that end, he often faces Miss Martian in telepathic battle.
• Ocean Master (voiced by Roger Craig Smith) – Board member of the Light and Aquaman's half-brother. Sometime after the events of Season 1, he was somehow disgraced and was replaced with Black Manta.
• Brain (voiced by Nolan North in the first unofficial appearance, Corey Burton in the first official appearance) – Member of the Light. He was originally a man whose brain was put in a special mobile container. Brain and Klarion the Witch Boy worked with Professor Ivo to weaponize a fragment of Starro in order to create Starro-Tech.
  • Monsieur Mallah (vocal effects provided by Dee Bradley Baker) – Brain's gorilla sidekick.
• Klarion the Witch Boy (voiced by Thom Adcox-Hernandez) – Member of the Light and an associate of the Lords of Chaos. He and Brain worked with Professor Ivo to weaponize a fragment of Starro in order to create Starro-Tech. According to Greg Weisman, Klarion joined the Light mostly because it seemed like fun.^[32]
  • Teekl (vocal effects provided by Dee Bradley Baker) - A cat who is Klarion the Witch Boy's familiar spirit. If Teekl is destroyed, Klarion will have nothing to anchor him to the mortal realm.
• Black Manta (voiced by Khary Payton) – An associate of the Light and Aqualad's father. In Season 2, Black Manta has replaced Ocean Master on the Light.

Villains and rogues

• Mr. Freeze / Victor Fries (voiced by Keith Szarabajka) - A super-villain with cryokinetic powers, being capable of blasting ice with his bare hands. His powers are also used to charge his freeze cannon, but he must wear a cryogenic suit in order to survive in temperatures that are above -50 degrees. He attacked a park in Gotham City, but was quickly defeated by Batman and Robin. He was sent to Arkham Asylum, but was later transferred to Belle Reve upon pleading sanity where he participated in a super villain breakout, but was defeated by Superboy, who broke Mr. Freeze's helmet, forcing him to turn his powers on himself to survive.
• Icicle Jr. / Cameron Mahkent (voiced by Yuri Lowenthal) - A criminal with cryokinetic powers and the son of Icicle Sr. He attacked a bridge in Star City only to be defeated by Green Arrow and Speedy. He was sent to Belle Reve where he participated in his father's failed breakout plan. In 2016, Icicle Jr. was working for Queen Bee in Bialya preparing abducted runaways to be sent to the Reach. He was also chosen by the Light for a strike team led by Kaldur to capture Blue Beetle.
• Killer Frost / Crystal Frost (voiced by Sarah Shahi) - She is a cryokinetic super-villain. Killer Frost attacked Pearl Harbor, but was defeated by Aquaman and Aqualad. She was then sent to Belle Reve prison where she participated in a super villain breakout. After discovering that Miss Martian was disguised as Tuppence Terror, she froze her. Superboy subdued Frost quickly after seeing Miss Martian's state.
• Captain Cold / Leonard Snart (voiced by Alan Tudyk) - A thief who uses cryotechnology. He attempted to rob a jewelry store in Central City only to be stopped by Flash and Kid Flash. He was sent to Belle Reve prison where he took part in a failed breakout attempt.
• Blockbuster / Mark Desmond (voiced by René Auberjonois) - Mark Desmond is a scientist who worked at Project Cadmus and works for the Light. He created the Blockbuster formula and helped Lex Luthor to create Superboy. When Superboy was about to escape the Cadmus, Desmond ingested the Blockbuster formula becoming Blockbuster. He was defeated and sent to Belle Reve where he took part in Icicle Sr.'s failed plan to escape from the prison.
• T.O. Morrow (voiced by Jeff Bennett) - The scientist responsible for creating Red Tornado and an operative of the Light. He also created Red Torpedo and Red Inferno to infiltrate the Justice Society of America, both of which failed. He worked with Bromwell Stikk to test out the Mister Twister armor. It is later revealed that the real T.O. Morrow was in a coma at an old age and that he built an android in his place until the android duplicate was destroyed by Red Volcano.
  • Bromwell Stikk (voiced by John de Lancie) - A scientist that is the lab partner of T.O. Morrow. He and T.O. Morrow created the Mister Twister armor and used an android double of Bromwell Stikk to operate it.
  • Red Inferno (voiced by Vanessa Marshall) - A robot that resembles Red Tornado, but has fire-based abilities. She had originally been the 1940s heroine Firebrand, but was "too heroic" and ended up being "killed" in the line of duty, negating her usefulness to Morrow at the time.
  • Red Torpedo (voiced by Jeff Bennett) - A robot that resembles Red Tornado, but has water-based abilities.
  • Red Volcano (voiced by Jeff Bennett) - A robot that resembles Red Tornado, but has volcanic-based abilities. He was created by T.O. Morrow to be the sibling of Red Tornado, Red Inferno, and Red Torpedo. Though Red Volcano destroyed the T.O. Morrow android.
• Brick / Daniel Brickwell (voiced by Khary Payton) - A super-strong criminal from Star City. His gun smuggling operation was thwarted by Red Arrow and sent to Belle Reve. He was part of the failed breakout plan to escape from the prison.
• Bane (voiced by Danny Trejo) - A Hispanic supervillain who uses the super-steroid Venom to increase his strength. He was the ruler of the island nation Santa Prisca in the Caribbean Sea where he headed a factory that manufactured the Venom. The island was taken over by the Cult of the Kobra after Bane was defeated by super-powered Mammoth. After, the factory was destroyed by the Team, he was able to get back his island. Bane and his gang later formed an alliance with the Light where he allowed them to use Santa Prisca as their base of operations.
• Kobra (voiced by Arnold Vosloo) - A man who is the leader of the Cult of Kobra and an ally of The Light. He and his cult once developed the Venom/Blockbuster formula ("Kobra Venom") for The Light.
• Mammoth / Baran Flinders - Baran Flinders and his twin sister Selinda were members of The Cult of Kobra. After being injected with a hybrid strain of the Venom drug and the Blockbuster formula by his sister, he developed super strength and became very deformed. After Kobra's defeat, Mammoth was sent to Belle Reve where he took part in a failed breakout attempt. In 2016, Baran was working for Queen Bee in Bialya preparing abducted runaways to be sent to the Reach.
• Shimmer / Selinda Flinders - Selinda Flinders is a martial-artist who was Kobra's right hand woman. She is also the twin sister of Baran. After Kobra's defeat, Shimmer was sent to Belle Reve where she took part in a failed breakout attempt. In 2016, Shimmer was working for Queen Bee in Bialya preparing abducted runaways to be sent to the Reach. However, Miss Martian took her out with a brain blast. Later, she was experimented on by the Reach with the experiments activating her metahuman powers.
• Sportsmaster / Lawrence Crock (voiced by Nick Chinlund) – A sports-themed agent of the Light. He is the ex-husband of Paula Crock, the father of Artemis and Cheshire, and grandfather to Lian Nguyen Harper. In a flashback, Sportsmaster and Deathstroke were responsible for the death of Ted Kord. When Artemis faked her death, he demanded an "eye for an eye" situation by being allowed to kill Aqualad.
• Professor Ivo (voiced by Peter MacNicol) - A mad scientist and associate of the Light. He was the one who created Amazo and helped Brain and Klarion the Witch Boy weaponize the Starro-Tech.
  • Amazo (voiced by Peter MacNicol) - An android created by Professor Ivo. He has the ability to copy the powers of the Justice League. Superboy defeated it when Artemis' arrow induces Amazo to use Marian Manhunter's density shifting. Before Amazo could fully restore its density, Superboy stuck his fist inside, destroying him.
  • M.O.N.Q.I.s (vocal effects provided by Peter MacNicol) - Short for Mobile Optimal Neural Quotient Infiltrators, the M.O.N.Q.I.s are robotic monkeys that serve as the foot soldiers for Professor Ivo. Professor Ivo mentioned that it took him ages to figure out an acronym for "monkey."
• Cheshire / Jade Nguyen (voiced by Kelly Hu) – Member of the League of Shadows, the sister of Artemis, and the daughter of Sportsmaster/Lawrence Crock and the Huntress/Paula Nguyen. Despite the family feud, Cheshire is shown to have a soft spot for Artemis and admits that she doesn't "actually want her dead." In Season 2, Cheshire is shown to be married to Red Arrow with whom they have a child and has left the services of the League of Shadows. She informs Red Arrow on where the real Roy Harper is located, and together they rescue him. Cheshire later teams up with Red Arrow to deactivate one of the Reach bombs in "Endgame". Due to Lian, Jade may retire from the adventurous life she's had.
  • Lian Nguyen Harper (vocal effects provided by Kelly Hu) - The daughter of Cheshire and Red Arrow; her actual age is not stated, but one or two is likely. Cheshire has said Lian's enjoyment of watching super violence is genetic from her side, prompting Red Arrow to sarcastically retort "great". Lian is shown to be smart for a toddler, saying "Two dadas" when the original Roy Harper is rescued by her parents.
• League of Shadows – A group of assassins that are led by Ra's al Ghul and carry out the bidding of the Light.
  • Sensei (voiced by Keone Young) – A high-ranking member of the League of Shadows.
  • Black Spider / Eric Needham (voiced by Josh Keaton) – A spider-themed assassin.
  • Hook – An assassin with a hook for a hand.
  • Professor Ojo (voiced by Nolan North) – A scientist who wears a special helmet to see.
  • Ubu (voiced by Fred Tatasciore) - A super-strong man and member of the League of Shadows who is loyal to Ra's al Ghul.
• Abra Kadabra (voiced by Jeff Bennett) - He is faux magician who once fought against Flash. He later teamed up with Klarion the Witch Boy in order to find Helmet of Fate so that Klarion can make him a true magician. Abra Kadabra followed Kent Nelson to Madame Xanadu's parlor and kidnapped him. He was defeated by the Team in the Tower of Fate.
• Clayface / Matt Hagen (voiced by Nolan North) - A shapeshifting supervillain made of clay. In the tie-in comics, Matt Hagan was a member of the League of Shadows. His appearance is quite hideous and frightening, looking more like a rotting lump of flesh than a being made of clay.
• Terror Twins (voiced by Yuri Lowenthal and Danica McKellar respectively) - Tommy and Tuppence Terror are rash and arrogant fraternal twins who possess super-strength and invulnerability. Together they make the villainous duo "The Terror Twins". Their arrest was vital in a plan to infiltrate Belle Reve as Superboy and Miss Martian would go undercover as the twins. In 2016, they were chosen by the Light for a strike team led by Kaldur to capture Blue Beetle and some of the other members of "The Team".
• Icicle Sr. / Joar Mahkent (voiced by James Remar) - A criminal who uses cryokinetic technology and the father of Icicle Jr. While imprisoned in Belle Reve, Icicle Sr. initiated a mass breakout attempt with smuggled technology with the help of Captain Cold, Icicle Jr., Killer Frost and Mr. Freeze. Despite not escaping, he and Hugo Strange were satisfied with accomplishing multiple objectives in part for the Light.
• Hugo Strange (voiced by Adrian Pasdar) – A prison psychiatrist of the supervillain prison Belle Reve who is also an operative of the Light. Following Icicle Sr.'s failed breakout plot, Hugo Strange became the new prison warden and was revealed to by Icicle Sr.'s silent partner in the plot in order to further the goals of the Light. He is responsible for Professor Ivo's temporary breakout on behalf of the Light so that Professor Ivo can weaponize the Light's Starro-Tech.
• Riddler / Edward Nigma (voiced by Dave Franco) - An enemy of Batman who specializes in riddles. He was an inmate at Belle Reve and the only one to escape during Icicle Sr.'s failed breakout attempt. Riddler is also shown to be an agent of the Light as he was seen helping Sportsmaster secure a part of Starro from S.T.A.R. Labs. During the Season 1 finale, he sets up an ambush, asking a riddle about a plant that is not a flower or a tree. After capture, Zatana gags him out of annoyance because he kept trying to say riddles.
• Devastation (voiced by Diane Delano) - A heavyset super-strong Caucasian woman who is an adversary of Wonder Woman. During the failed breakout attempt at Belle Reve, she was frozen by Killer Frost (who was trying to hit Superboy). In 2016, Devastation was working for Queen Bee in Bialya preparing abducted runaways to be sent to the Reach.
• The Injustice League – A small group of villains who used plant-like creatures to attack the Earth in "Revelation." They seemed to play as the masterminds behind events in Season 1, but in reality they were scapegoats to distract the Justice League from uncovering the true masterminds: the Light.
  • Atomic Skull – A S.T.A.R. Labs scientist turned supervillain and enemy of Superman.
  • Black Adam – An adversary of Captain Marvel.
  • Count Vertigo (voiced by Steven Blum) – Member of the royal family of Vlatava and enemy of Green Arrow. He is obsessed with seizing power from his niece Queen Perdita. Unlike the others, he was not arrested due to Diplomatic Immunity, which revoked later that season by his niece when he accidentally got tricked into revealing his pact with Vandal Savage to ensure the failure of her heart transplant.
  • Joker (voiced by Brent Spiner) – Batman's archenemy. Unlike other versions, this one hints towards having multiple personalities. He shows knowledge of the fourth wall; most likely his insanity lets him see the truth of his reality.
  • Poison Ivy / Pamela Isley (voiced by Alyssa Milano) – A ecoterrorist and plant manipulator, who is an enemy of Batman.
  • Ultra-Humanite (vocal effects provided by Dee Bradley Baker) – An albino gorilla supervillain with super-human strength and intellect and enemy of Superman. In the tie-in comics, Ultra-Humanite was an old lady who transferred her brain into the body of an albino gorilla.
  • Wotan (voiced by Bruce Greenwood) – An immortal viking sorcerer and an adversary of Doctor Fate. He was one of the magicians summoned by Klarion the Witch Boy to perform a spell that could split the world in two dimensions.
• Intergang - A crime syndicate that uses technology from Apokolips.
  • Bruno "Ugly" Mannheim (voiced by Kevin Michael Richardson) - Leader of Intergang. He is later lobotomized by Sportsmaster to serve as a warning to anyone who goes against the Light.
  • Whisper A'Daire (voiced by Grey DeLisle) - Member of Intergang. She is later lobotomised by Sportsmaster to serve as a warning to anyone who goes against the Light.
• Desaad (voiced by Dee Bradley Baker) - He is a New God from Apokolips and a servant of Darkseid. He came to Earth to supply Intergang with Apokoliptan weaponry. He was defeated by the Forever People and Superboy, but got away.
• Harm / Billy Hayes (voiced by Benjamin Diskin) - He is a sociopathic villain who killed his younger sister Greta. She was the only thing Harm loved, but since required his heart to be pure in order to hold the Sword of Beowulf, he had to cut her out of his heart by killing her. He also refers to himself in third-person and uses the impersonal pronoun to refer to others, objectifying them. The guilt of killing Greta eventually overcomes him when her ghost appears, causing the sword to reject him. Whether this left Harm completely mentally broken from guilt is left unknown.
• Felix Faust / Dekan Drache (voiced by Dee Bradley Baker) - A powerful sorcerer and an alchemist who was summoned by Klarion the Witch Boy along with other magicians to perform a spell that could split the world in two dimensions.
• Blackbriar Thorn (voiced by Kevin Michael Richardson) - A High Priest of the ancient Druids of Cymru who is recruited by Klarion the Witch Boy alongside other magicians in order to cast a powerful spell that would separate the adults and children of Earth onto two separate worlds.
• Wizard / William A. Zard (voiced by Corey Burton) - A skilled magician dressed in Victorian fashion. He was one of the magicians called by Klarion the Witch Boy to cast a spell that split the world into two separate dimensions.
• Match (voiced by Nolan North) - He is a genomorph created by Project Cadmus and the first attempt at cloning Superman which didn't go well, since Kryptonian DNA is tricky to clone compared to that of earth's lifeforms. His name was derived from Lex's desire to "have Superman meet his match." Match was freed by Superboy as per wishes by his "father" Lex Luthor. However, Match attacked Superboy after seeing his Superman-insignia. He had been programmed to respond to this, in order to attack Superman. Match then burned a backwards "S" onto his chest with heat-vision, mirroring Bizzaro. By using the shields given to him by Luthor, Superboy was able to defeat Match. The pod containing Match was later stolen from Project Cadmus during the Light's raid.
• Parasite / Raymond Jensen (voiced by Adam Baldwin) - A supervillain that can temporary borrow the abilities of anyone by simply touching them. He was approached by Intergang to steal components for a black hole device. To gain access to the European cities from which he had to steal the parts, Parasite joined Haly's Circus as "Ray the Roustabout". He was defeated by the Team who also infiltrated the circus to stop him.
• Kroloteans – An alien race that are recurring enemies in Season Two. One Krolotean used a special suit to masquerade as U.N. Secretary-General Tseng only to be exposed and taken away by Lobo. Another one tried to masquerade as Bibbo Bibbowski only to be stopped by Blue Beetle, Bumblebee, and the real Bibbo. There were some Kroloteans positioned on Malina Island until a bomb planted by Aqualad blew up Malina Island.
• Neutron / Nathaniel Tryon (voiced by James Arnold Taylor) - Neutron was a nuclear-powered supervillain who was created from being experimented upon by the Reach. He is cured thanks to Impulse and his future self-creating an antidote for his condition. His future self was left horrified that his curing in the past didn't prevent the Reach Apocalypse.
• The Reach - An imperial race of aliens that are also known as "the Partner" to the Light and "the Competitor" to the Kroloteans. They have sinister plans for Earth and are abducting teens with latent meta-genes to study their powers so they can more effectively fight the planet's superheroes. Following their encounter with The Team, the Reach went to the United Nations and claim that they are here to assist humanity. In Impulse's future, the Reach (with the help of Jaime Reyes under the Reach's control) have enslaved the human race in what is called "the Reach Apocalypse."
  • Reach Ambassador (voiced by Phil LaMarr) - The ambassador of the Reach. He is a skilled actor, and overconfident in his plans, believing them to be infallible. This ultimately led to Black Beetle abandoning him during the three-way battle with the Light and the Team, in favor of saving the Reach Scientist.
  • Reach Scientist (voiced by Masasa Moyo) - The scientist of the Reach. She experimented on young metahumans that were brought to them. Unlike the Ambassador, she is level-headed and sees when things aren't and won't go in their favor. The Reach Scientist only grows aggravated when pointing out he should have listened to her.
  • Black Beetle (voiced by Kevin Grevioux) - Member of the Reach. Black Beetle was first seen in silhouette. When the Team first confronted the Reach, he wasn't referred to by name and was called Black Beetle by Wonder Girl. His scarab was destroyed by the Blue Beetle.
  • Green Beetle (voiced by Phil LaMarr) - B'arzz O'oomm is a Green Martian who is a servant of the Reach. He was assigned to gain the Team's trust by helping them defeat Black Beetle so that the Reach can get Blue Beetle's scarab back under their control. Like Blue Beetle, Green Beetle was freed from the Reach's influence by Zatanna using a spell that Doctor Fate prepared her to cast. The Green Beetle scarab was later destroyed by Black Beetle.
• Despero - An intergalactic gladiator with telepathic powers.
  • L-Ron (voiced by Phil LaMarr) - Despero's robotic majordomo.
• Deathstroke / Slade Wilson (voiced by Wentworth Miller in the first appearance, Fred Tatasciore in later appearances) - An assassin who was hired by The Light to replace Sportsmaster when he goes rogue in his revenge on Black Manta and his son for causing the "death" of Artemis. Deathstroke helped Tigress into capturing Miss Martian so that Black Manta can have her restore Aqualad back to normal. In a flashback, it was revealed that he and Sportsmaster were responsible for the death of Ted Kord.
• Mongul (voiced by Keith David) - The ruler of War World. He came to Earth on Vandal Savage's advice in order to further the plans of the Reach. He is still held prisoner in his own War World ship.
• Toyman / Winslow Schott (voiced by Cameron Bowen) - A criminal that uses toy-based devices in his crimes.
• Darkseid - The ruler of Apokolips. At the end of "Endgame," Vandal Savage meets with Darkseid on Apokolips. While Desaad and G. Gordon Godfrey look on, Vandal Savage shakes hands with Darkseid quoting "business as usual."