List of ''Brooklyn Nine-Nine'' characters

Jake Peralta

• Andy Samberg as Detective Jake Peralta, a talented but childish detective. Peralta shows "class clown" traits, constantly pulling pranks and making immature jokes at the expense of his colleagues, particularly his partner, Amy Santiago. He is fun-loving and sarcastic but is often motivated by his emotions more than his colleagues. Despite his goofy traits, Peralta has the best arrest rate in the precinct, something that both befuddles and irritates Santiago, who seemingly has to try twice as hard to succeed. In the pilot, Terry Jeffords explains to Captain Holt that Peralta is his best detective, that he likes putting away bad guys, and that he loves puzzles, although "the only puzzle he hasn't solved is how to grow up." As of Season 1, he is 33 years old and has been a detective with the 9-9 since 2005.^[1]

While Jake doesn't initially approve of Captain Holt's strict management, calling him a rule following robot in the Pilot, he eventually matures under Holt's supervision and comes to see Holt as a father-figure; and has called him dad many times. In "The Oolong Slayer", Jake achieves his lifelong dream to catch a serial killer, the Oolong Slayer, but gives up the credit for the arrest to the Chief of Brooklyn Detectives, Assistant Chief Davis Garmin, in exchange for getting Holt transferred back to the 99th Precinct.^[2]

Jake began his career as a patrol officer with the 74th Precinct, and was partnered with Stevie Schillens (Damon Wayans, Jr.) and the two nicknamed themselves the "Beatsie Boys"; in 2016, Jake was forced to arrest Stevie, now a detective with the neighboring 98th Precinct for planting evidence.^[3]

At the end of Season 4, Jake and Rosa Diaz are framed by their idol Lt. Melanie Hawkins and are arrested. After months in prison at the beginning of Season 5, the two are freed thanks to the precinct exposing Hawkins' crimes. Although he is eager to return to work, his time in prison left him with some post-traumatic stress that affected his job performance; he told Captain Holt in "Kicks" that he automatically believed a suspect who claimed to be being framed because he now knew how bad prison was and how easy it was to actually be sent to prison for a crime he didn't commit.

Peralta's closest friend in at the precinct is Charles Boyle, who admires Peralta and encourages his eventual romance with Santiago. Peralta and Gina Linetti are childhood friends, helping Gina get a job at the precinct. Diaz and Peralta were classmates at the police academy.

Peralta continuously pranks and teases his partner Santiago, masking his secret romantic feelings for her. Peralta confesses his feelings to her in the first season finale before going undercover for a mafia operation. His romantic feelings for her develop further throughout Season 2 and they share their first kiss in "Johnny and Dora".^[4] Jake and Amy start dating in "New Captain" and decide to move in together in the Season 3 finale "Greg and Larry", but don't make it official until Season 4's "The Fugitive". Jake proposes to Amy at the end of their annual Halloween heist in "HalloVeen" and the two become engaged and are later married by Captain Holt in the finale of Season 5.^[5]

His father left his family during his childhood and, as a result, he feels a strong tie to memories involving his father, such as his favorite Brooklyn pizza joint. He also initially refuses to celebrate Thanksgiving, since he associates the memory with his father's absenteeism. He also has a strong emotional tie to his poorly made, low-quality sports car, which he bought outright on his first day as a cop and always carries a positive association for him (until he sold it to help pay for Terry's new child). He often quotes and makes references to his favorite movie, Die Hard. In "Boyle-Linetti Wedding" it is revealed that Jake is Jewish, having lost his childhood sweetheart Jenny Gildenhorn to Eddie Fung at his Bar Mitzvah.

Awards and decorations

The following are the medals and service awards fictionally worn by Detective Peralta.

	American Flag Breast Bar
	NYPD Commendation or Commendation—Integrity[6]
	NYPD Excellent Police Duty[6]
	NYPD Award of Merit
	Williamsport, PA Bureau of Police's Gallantry Star
	NYPD 150th Commemorative Breast Bar
	NYPD Firearms Proficiency Bar[6]

In "Stakeout", he received a commendation for his work on Rosa's drug task force.

Rosa Diaz

• Stephanie Beatriz as Detective Rosa Diaz, a smart, tough, aloof, and mysterious detective. She attended parochial school, later studied ballet, and was a classmate of Jake's in the police academy.^[7] Though Diaz is a loyal and effective member of the squad, her anger management issues and lack of empathy terrify most of her coworkers. She is highly secretive about her personal life – should anyone discover a secret of hers, she normally threatens them with death should they disclose it. It is also made clear that she does not stay in her apartments for long periods of time, and her neighbours know her by both a different name and a completely different personality. As revealed in "Cop-Con", she and Amy are younger than most of the other precinct members as they are hurt by a device that emits a loud noise to those under 35, whereas Jake and Boyle only pretend to be affected by it. In "White Whale", she reveals to Amy that she's attended medical school, business school, and has a pilot's license.

In Season 2, Rosa dates Captain Holt's nephew, Marcus (Nick Cannon), but breaks up with him in Season 3. Later in the season, she finds love with former undercover detective Adrian Pimento (Jason Mantzoukas); the two get engaged in "Paranoia" while chasing a drug dealer through an alley, but their wedding is delayed when Pimento is targeted by Figgis and forced to leave the state. Once he returns, they try to have their wedding the next day, but decide to go steady after they nearly have their wedding too soon.

At the end of Season 4, Rosa and Jake are framed by their idol Lt. Melanie Hawkins and are arrested. After months in prison at the beginning of Season 5, the two are freed thanks to the precinct exposing Hawkins' crimes. Following her months of isolation, she starts spending more time with her family and ends her relationship with Pimento. Later in the season, she comes out as bisexual to the precinct and her family, and has a brief relationship with an unseen woman that the squad never meet or learn the name of, and instead nickname "Becky." She has a brief flirtation with one of Gina's friends, but this does not lead anywhere. On the day of Jake and Amy's wedding, however, she and Terry meet a cab driver named Alicia (Gina Rodriguez), and Terry intercedes by leaving Amy's veil in her cab so that they can call her to come back. Although this initially annoys Rosa, she is immediately captivated when Alicia gets out the cab and she can see her properly.

Awards and decorations

The following are the medals and service awards fictionally worn by Detective Diaz.

	American Flag Breast Bar
	NYPD Excellent Police Duty
	NYPD Firearms Proficiency Bar

In "Stakeout", she received a commendation for her work as the leader of a drug task force.

Terry Jeffords

• Terry Crews portrays Sergeant Terry Jeffords, the supervisor of the 9-9's Detective Squad. An avid bodybuilder whose size, strength and intimidating demeanour stands in stark contrast to his gentle, fatherly nature. Jeffords is devoted to his wife and three young daughters Cagney, Lacey (named after the stars of the 1980s TV series),and Ava. He fears the danger of police work because of the possibility that he could leave his children fatherless. Following a panic attack prior to the show's beginning, Terry was removed from field work, but he has since cautiously returned. He is high-strung, prone to nervous excitement, loves yogurt, and often refers to himself in third person, but he is an effective and caring leader to the detective squad.

A running gag throughout the series is for Terry to break things (examples include a Magic 8 Ball and a phone) because of his incredible strength. He has been a detective since 1995, and used to be assigned to the 65th Precinct (as seen in "Terry Kitties"), where he was constantly mocked for a botched case which he and Jake later proved he was correct in. In 2005, he was the senior detective at the 9-9 (the position Jake now holds since Terry's promotion). He was a linebacker at Syracuse University, where he graduated magna cum laude, as revealed in "The Swedes". He also studied abroad in Japan while in college and dated a Japanese student named Chiaki who broke his heart.

In Season 2, Terry nearly gets a vasectomy at his wife's request, but Jake convinces him not to when he finds out Terry secretly wants to have more kids. His wife becomes pregnant later in the season and gives birth to their third daughter, Ava, in Season 3. He entrusts Jake to be Ava's godfather.

Awards and decorations

The following are the medals and service awards fictionally worn by Sergeant Jeffords.

	American Flag Breast Bar
	World Trade Center Breast Bar
	NYPD Commendation or Commendation—Integrity
	NYPD Unit Citation
	NYPD Firearms Proficiency Bar

Amy Santiago-Peralta

• Melissa Fumero portrays Sergeant Amy Santiago, Jake's uptight, by-the-book, rule-following Cuban-American partner, and later wife.^[7] A neurotic overachiever, she is continually trying to ingratiate herself with Captain Holt, and any authority figure in arm's reach of her. Terry at one point explains to Holt that Amy's competitiveness is a result of her having seven brothers. Amy is a stickler for department protocol and is frequently exasperated by Jake's childishness, as well as the ease with which he succeeds as a detective. She is initially seen as Holt's teacher's pet, but over time is shown to command respect from others.

In "Charges and Specs," the season one finale, Jake confesses that he wishes something romantic could happen between them. She confesses to having had feelings for Jake in "The Road Trip" and is shown to still have feelings for Jake in "Det. Dave Majors". The two share their first kiss in "Johnny and Dora"^[4] and begin dating in "New Captain," although their working relationship does not change at all. They decide to move in together in the season 3 finale "Greg and Larry", but don't make it official until season 4's "The Fugitive". Jake proposes to Amy at the end of their annual Halloween heist in "HalloVeen" and the two become engaged and later married. Later in Season 5, Amy achieves her dream of being the youngest woman to pass the Sergeant's Exam. It is not known exactly how old Amy is, but she is under 35 as of the episode "Cop-Con", which makes her at least four years younger than Jake.

Near the end of Season 3, Amy goes undercover as a pregnant inmate in a women's prison in Texas to obtain information from Maura Figgis. Amy's fake pregnancy not only allowed her to see Charles whenever they wanted to discuss the case, but it also covered Melissa Fumero's actual pregnancy at the time without making her character pregnant.

Awards and decorations

The following are the medals and service awards fictionally worn by Sergeant Santiago.

	American Flag Breast Bar
	NYPD Excellent Police Duty
	Citation bar for delivering a baby
	Unidentified award

Charles Boyle

• Joe Lo Truglio portrays Detective Charles Boyle, a nervous and clumsy but honest and hard-working detective.^[7] He is Jake Peralta's best friend in the New York Police Department. He is divorced from his wife Eleanor, who had numerous affairs during their marriage, to the point where she has to pay alimony to him. He is also a huge, unapologetic foodie, maintaining a weekly Brooklyn pizza-ranking email and often relishing bizarre foreign cuisine that disgusts his coworkers. For saving Detective Diaz's life during "Christmas" (during which he was shot in the buttocks), he was awarded the NYPD Medal for Valor in "The Bet", though he was overshadowed by a revered and heroic NYPD horse named Sgt Peanut Butter. In "The Swedes", it is revealed that Boyle is a graduate of Sarah Lawrence College.

In the show's first season, Charles has a crush on Rosa, but he eventually gets over her when he starts dating Vivian Ludley. They get engaged, but break up after Charles doesn't want to move to Canada with her. He and Gina start seeing each other in Season 2, and their brief relationship results in his father and Gina's mother getting married. In Season 3, he starts dating Genevieve Mirren-Carter after he and Jake clear her name from an art thief. They eventually move in together and adopt a son from Latvia named Nikolaj. In Season 5, Charles starts his own food truck business called "The One Thing," which specializes in meatball subs. The truck is burned down by one of Charles' ex-employees, but he's thankful it happened as running the food truck made him spend less time with his family and built up a large debt.

Awards and decorations

The following are the medals and service awards fictionally worn by Detective Boyle.

	American Flag Breast Bar
	NYPD Medal for Valor
	Unidentified award
	Unidentified award
	NYPD 150th Commemorative Breast Bar

Gina Linetti

• Chelsea Peretti portrays Gina Linetti, the 99th Precinct's sardonic and egomaniacal civilian administrator and Captain Holt's assistant.^[7] Despite maintaining a clueless and dimwitted disposition most of the time, she can be surprisingly observant and has demonstrated traits of being more intelligent than she likes to show. Gina is obsessed with social media and is constantly on her phone. It is a running gag to try to pry her from her phone, to the point where Captain Holt becomes involved. She is extremely narcissistic and constantly praises and exalts herself, such as claiming to be a better dancer than Britney Spears in the episode "Karen Peralta." As the only civilian in the precinct, Gina often uses her outsider's perspective to assist the other detectives. In the episode "The Party," Rosa plays a prank on Gina by tricking her into talking to a group of psychology professors at Holt's birthday party, who then take copious notes about her narcissistic personality.

She casually admits on myriad occasions that she doesn't value her colleagues – except for Jake – as people. She was also childhood friends with Jake, who got her the job at the precinct. She transferred to the Public Affairs Division with Captain Holt in "Johnny and Dora", and returns to the 9-9 with him in "The Oolong Slayer".^[4][2] In the episode "The Apartment", it is revealed that she has been engaged eight times, but never married. At the end of "The Fugitive Pt. 2", she gets hit by a bus after receiving a text from Charles. The penultimate episode of season 4 reveals she has become pregnant following a relationship with Charles' cousin, Milton (which coincided with Chelsea Peretti's actual pregnancy). She is absent for the first half of Season 5 on maternity leave.

Raymond Holt

• Andre Braugher portrays Captain Raymond Holt, the 99th Precinct's strict new Commanding Officer. Holt is known for his cold, calm and robotic manner of speaking and lack of outwardly visible emotion, although his non-work friends frequently refer to him having a much more fun persona that is never seen by either the Nine-Nine members, nor the viewer. The Nine-Nine is Holt's first command despite many years of outstanding service, something he attributes to prejudice against both his race and homosexuality. He came out in 1987 and until recently led a group that supported gay African-American NYPD members, which he himself created.^[7] He was a homicide detective in the 1980s, and spent twelve years in the Community Affairs Bureau immediately prior to commanding the Nine-Nine.

Holt is married to Kevin Cozner, the Chair of Columbia University's Classics Department^[8] and has a longstanding professional rivalry with Madeline Wuntch, with whom he came up through the ranks; while his career stalled, she kept advancing and is now his immediate superior. After he and Peralta successfully solved a major case in "The Chopper", Bureau Chief Wuntch nominated him for a promotion to head of the NYPD Public Affairs Division, a promotion he accepted lest Wuntch transfer his staff to horrible posts around New York City.^[4] During the number of weeks he was in charge of Public Affairs, Holt was unable to accomplish anything significant thanks to Chief Wuntch's constant micromanaging. After helping Peralta solve a serial killer case, Holt found himself transferred back to command of the 9-9 by the Chief of Brooklyn Detectives.^[2] He owned a burgundy Chevrolet Corvair named Gertie which was his prized possession until it was stolen in 'The Fugitive'. Doug Judy purchased him a new identical one and named it Sexarella.

At the end of Season 3, Holt is forced to go into witness protection in Florida with Jake when they are threatened by Figgis. He worked at a family entertainment center called the Fun Zone under the alias of Greg until he and Jake baited Figgis into coming to Florida and took the criminal down with the Nine-Nine. In Season 5, his life and career are put at risk when he makes a deal with mobster Seamus Murphy in exchange for information to clear Jake and Rosa's names from Lt. Hawkins.

During Season 5, Holt learns that the New York City Police Commissioner is retiring at the end of the year and that he is on the short list of candidates to replace him.

Awards and decorations

The following are the medals and service awards fictionally worn by Captain Holt.

	American Flag Breast Bar
	World Trade Center Breast Bar
	NYPD Medal for Valor
	NYPD Meritorious Police Duty (with numeral "10")
	NYPD Excellent Police Duty
	NYPD Firearms Proficiency Bar

In "Stakeout", he received a commendation for his supervision of Det. Diaz's drug task force.

Michael Hitchcock

• Dirk Blocker portrays Detective 3rd Grade Michael Hitchcock (season 2—present; recurring season 1), an enthusiastic but clueless detective who has been best friends and partners with Detective Scully for over 30 years. Despite their inept nature, Hitchcock and Scully have both shown on occasion to be competent and even good detectives, though their laziness tends to keep them from demonstrating this most of the time. The majority of the precinct tends to be disgusted by Hitchcock's more perverted nature and attitude towards women. It's revealed in "The Last Ride" (Season 4) that Hitchcock held the all-time record for closed cases at the 99th Precinct, one more than Sgt. Jeffords as of that episode. This is mainly due to Hitchcock being at the 99th twenty years longer than Terry. To celebrate, Hitchcock got a tattoo of himself holding a gun and putting it in his mouth, oblivious to what it actually implies.

Norm Scully

• Joel McKinnon Miller portrays Detective Norm Scully (season 2—present; recurring season 1), a middle-aged, lazy and overweight desk worker who has been best friends and partners with Detective Hitchcock for over 30 years. Scully shows talent as a tenor opera singer and can "make great coffee", according to Sgt. Jeffords. Scully routinely discloses disgusting medical issues like the entire bottom of his foot being a wart or having various strains of fungi. He claims to constantly have medical emergencies and frequently suffers from constant heart attacks.At one point, he had a girlfriend, but no mention of her has been brought up since.

NYPD and other law enforcement

• Patton Oswalt as FDNY Fire Marshal Boone, the fire marshal of the local fire station. He leads the fire department in a rivalry against the detectives of the 99 but reaches a brief understanding with Jake when they discover that they both were abandoned at a young age by their fathers.
• Dean Winters as Detective Keith Pembroke, a detective in the Major Crimes Unit notorious for taking over cases that are nearly solved and getting all of the credit for closing them, which earns him the nickname "The Vulture". He frequently makes lewd comments toward the squad and has a greatly inflated sense of self. After the death of Seth Dozerman, The Vulture becomes the Commanding Officer of the 99th Precinct until Captain Holt returns. In "The Venue," Vulture steals Jake and Amy's venue at the last second to host his wedding to a kind charity worker named Jean Munhroe. When the two discover that he's unfaithful to Jean and lying to her about his character, they decide to tell Jean at the cost of Vulture taking their venue on their wedding night. He is a recipient of the American Flag Breast Bar, World Trade Center Breast Bar, NYPD Medal of Honor, and Marine Corps Service Award.
• Kyle Bornheimer as Sergeant Teddy Wells, a detective at the 82nd Precinct. Teddy used to date Amy Santiago; they resume their relationship after meeting up at a training exercise. Later Amy breaks up with him again, because she dislikes his dull personality and is unable to show interest in his home pilsner-brewing hobby. In Season 4, Teddy evaluates the nine-nine when the crime rate drops and one precinct has to close. He claims to have changed but Jake and Amy agree that he is still "The most boring man in America". He also admits to Amy that he still loves her and proposes to her twice; once in front of his new girlfriend and Jake, and the second time in front of the entire squad. In Season 5, Teddy has joined the bomb squad and tries unsuccessfully to steal Amy away from Jake on the day of their wedding.
• Jason Mantzoukas as Adrian Pimento, an emotionally unstable and volatile officer who returns to the 99th Precinct after spending 12 years undercover in the organization of Jimmy "The Butcher" Figgis. He began dating Rosa in "Cheddar", and the two got engaged in "Paranoia," but decide to just date after realizing they were rushing it. Rosa later breaks up with him in Season 5. He spends the next couple of months in Alaska before returning to Brooklyn to return as an insurance agent in "Gray Star Mutual," but is fired in the episode and starts working at a hand lotion store.
• James M. Connor as Deputy Commissioner Podolski, the NYPD's arrogant deputy police commissioner who uses his position for his own personal means such as keeping his rebellious son, Trevor, out of jail in "The Tagger".
• Michael G. Hagerty as Captain McGinley, the 99th Precinct's commanding officer before Raymond Holt, who was fired for his ineptitude and his permissive attitude toward the disruptive antics of Jake and his colleagues. McGinley later died in the episode "99" and the squad attended his funeral in Los Angeles.
• Kyra Sedgwick as Madeline Wuntch, a callous and unethical NYPD deputy police chief who shares a deep mutual hostility with Captain Holt. Wuntch and Holt were once partners and friends, but they fell out after Holt rejected her sexual advances and Wuntch gained promotions for which Holt was passed over, resulting in Wuntch eventually becoming Holt's direct superior. Wuntch constantly goes out of her way to undermine the 99th Precinct, and appears to take great pleasure in its and Holt's failures; Holt, in turn, gleefully insults and belittles Wuntch every time their paths cross. In "The Chopper" and "Johnny and Dora", she culminates her victory over Holt when she makes him head of the NYPD Public Affairs Division, where she humiliates him by making him do menial jobs, although he is eventually transferred back to the 99 thanks to Jake.
• Ken Marino as Captain Jason "C.J." Stentley, the Nine-Nine's temporary, under-qualified captain. Not wanting his ineptitude to be evident, he gives everyone everything they ask for until Amy eventually requests he start being more firm. This backfires after he rejects their request to go to Florida and assist Jake and Holt and he assigns them to the night shift. He is eventually removed from the Captain position after he is awarded for taking down a major drug dealer (that Jake and Holt primarily took care of) and demonstrates his lack of professionalism in front of a group of reporters. It's revealed that Holt called the reporters in to help the crew return to the day shift.
• Eva Longoria as Sophia Perez, a defense attorney who dates Jake in season 2. Jake and Sophia meet and engage in a one-night stand before he discovers that she represents a criminal against whom he is testifying. Despite the initial hostility this causes, they eventually reconcile and begin a relationship. Sophia later ends the relationship due to their professional and personal incompatibility, which leaves Jake saddened.
• Allison Tolman as Capt. Olivia Crawford, a candidate for the Commissioner position Holt is also seeking. She holds the belief that precincts should be eliminated, creating a rivalry with Holt. However, when she and Holt realize that their competition will split the votes and cause the unwanted third candidate to win, she withdraws her candidacy as she believes Holt is a great choice and he was the reason she was in the running for so long when he called out the selection committee for their sexism.

Family and friends of main characters

• Kevin Dorff as Hank, the bartender at Shaws Bar, the squad's favorite bar. He throws the squad out when Amy destroys the bar in "Thanksgiving". In "The Last Ride", he tells Gina to get out from behind the bar but she ignores him.
• Marc Evan Jackson as Kevin Cozner, Holt's husband and the Chair of Columbia University's Classics Department. He dislikes the NYPD due to their treatment of Holt and his homosexuality during his earlier years on the force, but thaws a little when Jake shows him how much the 99th respects and cares for Holt. Like his husband, Kevin is cold, sardonic and unemotional, although he claims that Raymond is the "funny" one in their relationship, something that puzzles the detectives. Cozner develops a rapport with Holt's assistant Gina Linetti, referring to her by her first name (by contrast, he takes pains to always call Jake "Peralta"). He also learned a couple of self-defense techniques from his husband, and used it to rescue Holt and Jake from Seamus Murphy. The two own a Pembroke Welsh Corgi named Cheddar.
• Craig Robinson as Doug Judy a.k.a. "The Pontiac Bandit", an intelligent, happy-go-lucky thief and forger who exclusively steals Pontiac vehicles. In "Pontiac Bandit," Peralta and Diaz bring Judy in for questioning related to the Pontiac Bandit, unaware that he is the perpetrator of the thefts. He leads the detectives to a red-herring suspect, escaping before they discover that Judy is their real target. He is later apprehended in "The Pontiac Bandit Returns", but offers to assist Diaz and Peralta in a drug investigation in exchange for a lighter sentence, and again manages to escape during the investigation. He returns again in "The Cruise," where he gets Jake and Amy's protection from a potential assassin on a cruise ship before escaping yet again. In season 4, Doug's former foster brother, George, escapes a prison bus wreck, and Peralta brings in Doug to help capture his brother. Afterwards, Doug Judy is given immunity for his past crimes. In "Hostage Situation", he appears to have gone straight and has started selling cars to child celebrities. When a shady figure from his past shows up and threatens his mother, he gets Jake's help in taking him down, but escapes the cops and steals diamonds that nearly cost Jake his job. However, Jake is invited to a karaoke room which they performed in during the plan and tells him that he'll be leaving for an unknown destination, recorded a couple of songs for Jake and Amy's wedding, and left Jake the diamonds he stole to ensure that his friend won't be punished for letting him escape.

Judy is a likeable and outgoing man with a talent for staying one step ahead of Peralta, who considers him his nemesis. Initially contemptuous of Peralta, Judy gains respect for him and by season 3 considers him a friend. Judy is also very (mainly sexually) attracted to Diaz.

• Stephen Root as Lynn Boyle, Charles's father who engages in a romantic encounter with Gina's mother, Darlene, and eventually marries her. He is a retired florist and is known to get overly eager and take big risks like his son.
• Sandra Bernhard as Darlene Linetti, Gina's mother, who engages in a romantic encounter with Charles's father, Lynn, and eventually marries him. She is a travel agent and shares her daughter's confidence and superstitions.
• Marilu Henner as Vivian Ludley, a food author who becomes romantically involved with Boyle. In "Full Boyle", she and Boyle become engaged, until she breaks it off in "Charges and Specs" when she wants to move to Canada and Boyle is not willing to do so.
• Bradley Whitford as Captain Roger Peralta, Jake's absentee father and commercial airline pilot. He left his family when Jake was at a young age and has cheated on his wife with multiple women. He eventually attempts to reconcile with Jake and Karen even when the latter knew about an affair with their neighbor. In "Two Turkeys" it's revealed that besides Jake he has three daughters with other women and an unknown amount of other sons.
• Katey Sagal as Karen Peralta, Jake's mother. She is a public school art teacher who worked hard to raise Jake as a single mother after Roger left the family. Despite their past, Karen eventually begins dating Roger again much to Jake's discomfort.
• Merrin Dungey as Sharon Jeffords, Terry's wife. She is kind and supportive towards her husband and his profession, but can occasionally be stubborn and doesn't like being lied to. She is often seen taking care of their twin daughters Cagney and Lacey and eventually gives birth to their third daughter Ava on the show.
• Jamal Duff as Zeke, Sergeant Jeffords' brother-in-law. Zeke often taunts Terry for his shorter height and profession, leaving the latter to turn to Captain Holt for help.
• Jimmy Smits as Victor Santiago, Amy's father. He is a retired cop and is shown to be overly organized and competitive like his daughter. He initially doesn't approve of Amy's relationship with Jake, but changes his mind and respects his daughter's decision after the two solve one of Victor's older cases.
• Bertila Damas as Camila Santiago, Amy's mother. Like her daughter, she can occasionally be over-controlling and competitive.
• Nick Cannon as Marcus, Holt's nephew, who begins a romantic relationship with Detective Rosa Diaz in season 2. Rosa breaks up with him in season 3 due to him being too emotional for her.
• Niecy Nash as Debbie, Holt's sister. Unlike her brother, she tends to be loud and overdramatic about her life, making it difficult for Holt to be around her.
• Mary Lynn Rajskub as Genevieve Mirren-Carter, an art curator who was initially framed for stealing her own paintings for the insurance money. She was eventually vindicated by Charles, and begins dating him over similar interests. Genevieve and Charles adopted a son, Nicolaj, on whom he dotes.
• L. Scott Caldwell as Laverne, Holt's mother and a federal judge. Holt refers to her as "Your Honor".
• Danny Trejo as Oscar Diaz, Rosa's father. He's intimidating and tough like his daughter, though Rosa mentioned in an earlier episode that he was a teacher. When Rosa comes out as bisexual, he doesn't take it well at first, but manages to accept his daughter for who she is.
• Olga Merediz as Julia Diaz, Rosa's mother. Unlike her husband, she still hasn't fully accepted her daughter's bisexuality.
• Nasim Pedrad as Katie Peralta, Jake's half-sister on his father's side as a result of Roger's affairs. She lives in Dallas, Texas and has a chaotic personality that Jake and Amy have a hard time handling.
• Sarah Baker as Kylie, Amy's best friend.

Antagonists

• Chris Parnell as Geoffrey Hoytsman, Sophia's boss at the Public Defender's office, who has issues with drugs. Jake arrests him for using cocaine in "The Defense Rests". He returns in "Sabotage", where he attempts to get revenge on Jake, but is foiled by Amy and Rosa.
• Aida Turturro as Maura Figgis, the sister of notorious gangster Jimmy "The Butcher" Figgis. She leads a prison gang in a maximum security women's penitentiary in Texas. Amy goes undercover as "Isobel Cortez" within the prison to learn the identity of Figgis' FBI contact from Maura.
• Eric Roberts as Jimmy "The Butcher" Figgis, a mobster whom Pimento went undercover to investigate. He made a threat against Jake and Holt's lives, forcing them to go into hiding.
• Dennis Haysbert as Bob Annnderson, a former partner of Holt's who now works for the FBI. He is brought in to help find info on the mole working for Jimmy "The Butcher" Figgis, but when going to interrogate a witness, Annderson pulls a gun on Holt and reveals that he was the mole the entire time. The Nine-Nine are eventually able to capture Annderson, and con him into revealing the files he has on Figgis, leading to Annderson's arrest, and the destruction of Figgis' empire.
• Gina Gershon as Lieutenant Melanie Hawkins, the head of the NYPD's most elite task force. Jake and Rosa both admired her and competed against each other for a spot on her team. They soon learn that she is corrupt and running a bank robbery crew. When they try to work undercover to bring her down, she manages to frame Jake and Rosa and get them convicted for armed robbery. However, Holt receives inside information from mobster Seamus Murphy to bring Hawkins down and clear Jake and Rosa's names.
• Paul Adelstein as Seamus Murphy, a local mobster. He assisted the Nine-Nine in exposing Hawkins' crimes, as the two sides saw Hawkins as a common threat. However, it came at the price of Captain Holt owing him a favor in return for the information to bring Hawkins down and free Jake and Rosa. Jake, Charles, and Holt found a loophole when Murphy came for his favor allowing Holt to keep up his end of the bargain and secretly stop their plan thanks to Seamus' nephew Kyle. When Seamus discovers this, he threatens Kevin's life. Holt and Jake are captured by the mobster while trying to protect Kevin, however Kevin manages to take Murphy down himself and rescue the both of them. Following his defeat, Murphy and his men are apprehended by the FBI.