Season Three of Brooklyn Nine-Nine began airing on September 27, 2015 and concluded on April 19, 2016. It consisted of 23 episodes.
|Andy Samberg||...||Jake Peralta|
|Stephanie Beatriz||...||Rosa Diaz|
|Terry Crews||...||Terry Jeffords|
|Melissa Fumero||...||Amy Santiago|
|Joe Lo Truglio||...||Charles Boyle|
|Chelsea Peretti||...||Gina Linetti|
|Andre Braugher||...||Captain Ray Holt|
|Dirk Blocker||...||Michael Hitchcock|
|Joel McKinnon Miller||...||Norm Scully|
- It has been confirmed that Andre Braugher and Chelsea Peretti will continue to appear as series regulars despite their characters' exit from the Nine-Nine at the end of season two. They returned to their positions in Episode 4.
- At the time of the season two finale's broadcast, no actor had been cast in the role of the new captain.
- On July 30, 2015, it had been announced that Archie Panjabi had been cast as Lieutenant Singh in the second episode of the season due to air on October 4, 2015.
- On August 6, 2015, it was revealed that Bill Hader had been cast as Seth Dozerman, the new captain of the 99th Precinct.
- On October 14, 2015 it was revealed that Nick Offerman had been cast as Frederick, an ex-boyfriend of Ray Holt.
- On November 10, 2015 it was announced that after the holidays the show would move to Tuesdays at 9.00 PM, the same night but a half hour later than where the majority of Season One episodes aired.
- On November 16, 2015, Melissa Fumero announced that she was pregnant with her first child. Her pregnancy will not be written into the show.
- On November 20, 2015, it was revealed that Niecy Nash had been cast as Captain Holt's sister, Debbie in an episode scheduled to air in January.
- On December 4, 2015, it was revealed that Kathryn Hahn had been cast as Charles Boyle's ex-wife, Eleanor in the mid-season premiere due to air on January 5, 2016.
- On December 7, 2015, it was revealed that Katey Sagal had been cast as Jake Peralta's mother, Karen Peralta in an episode airing in early 2016. It was also announced that Bradley Whitford would reprise his role as Jake's father, Roger Peralta.
- On December 14, 2015, it was revealed that Damon Wayans Jr. had been cast as Jake Peralta's former beat partner, Stevie, in an episode airing in early 2016.
- On January 25, 2016, it was revealed that Jason Mantzoukas had been cast as Adrian Pimento in an upcoming episode.
- On March 11, 2016, it was revealed that Dennis Haysbert had been cast as FBI Special Agent Bob Anderson in the final two episodes airing April 12 and April 19, 2016.
See also: List of Episodes
|After Holt is transferred to the NYPD Department of Public Relations, the new captain’s arrival causes the precinct to dissolve into chaos, despite Terry’s best efforts to keep everyone on point. Meanwhile, Jake and Amy face the aftermath of their “for reals” kiss.|
|The Nine-Nine gets another personnel change that could put Jake and Amy’s budding relationship at risk. Meanwhile, Terry assists Holt with an important public relations matter, and Rosa and Gina try to convince Charles to rethink his affection for a fellow officer.|
|Jake thinks Boyle might have met his soulmate in Genevieve, an art gallery owner, and he tries to help set them up. Meanwhile, Rosa deals with inter-precinct theft and Holt seeks Amy’s help with an image campaign.|
|4||The Oolong Slayer|
|When investigating a serial killer, Jake enlists Holt’s help in an attempt to solve the case off the radar. At the precinct, Rosa and Amy are forced to deal with demands from an old adversary and Terry discovers a new obsession.|
|The third installment of Captain Holt and Jake’s Halloween heist culminates with a tie-breaking competition to claim the title of “amazing detective slash genius.” This year, Jake and Holt split the squad into two teams to help them win.|
|6||Into the Woods|
|Jake and Charles convince Terry to take a weekend camping trip as a much needed "babymoon."|
|Jake and Amy convince the Captain to let them work a case together involving a new street drug, but their new relationship gets in the way.|
|Sharon's water breaks sooner than expected & a crisis ensues at the precinct.|
|Jake and Rosa are forced to work with a pair of Swedish cops and things get very competitive, very quickly.|
|Jake, Charles, and Gina are involved in a real-life “Die Hard” situation while off-duty on Christmas Eve.|
|Charles and Genevieve want to take their relationship to a new level.|
|When Captain Holt and Jake accidentally contract the mumps during an investigation, they decide to be quarantined together in hopes of still solving the case.|
|Jake and Amy are excited to go on their first real vacation together, but Amy’s perfectly planned cruise ship itinerary is thwarted when they discover an old adversary is on board with them.|
|On his birthday, Jake brings Amy to meet his mother, but a surprise appearance by his dad throws a wrench in his special day.|
|The Nine-Nine host the detectives from the Nine-Eight, their neighboring precinct, reuniting Jake with his old partner.|
|When Jake insults Hitchcock and Scully's work ethic in the precinct, they force their way into one of his cases in attempt to prove themselves.|
|When an unstable detective returns to the Nine-Nine after years undercover, Jake doesn’t know what to make of him.|
|Holt allows Amy and Jake to house-sit for him while he visits Kevin in Paris.|
|In an attempt to prove to his old precinct that he’s not a joke, Terry enlists Jake’s help in solving a case from his past.|
|Rosa enlists Jake to help change Terry’s disapproving opinion about her fast-moving relationship with Adrian Pimento.|
|In an attempt to get information on a criminal operation, Amy has to go undercover at a women’s prison and befriend one of the prisoners.|
|Captain Holt calls on an old friend in the FBI to help with a seemingly impossible heist.|
|23||Greg and Larry|
|After a surprising turn of events in the Nine-Nine's attempt to track down Adrian Pimento's hitman, the precinct drops everything when they suspect Holt is in danger.|