!!Temperance Brennan (Emily Deschanel)
* ActionGirl
* {{Adorkable}}: She has her moments of this particularly in lighthearted moments with Booth.
* AgentScully: No matter how insightful or useful Sweets is, she tends to dismiss his insight. Even treating previous accuracy as "coincidence" because of her dismissal of psychology as a science. She has a similar attitude towards anything even vaguely supernatural.
* AloofDarkHairedGirl
* AmbiguousDisorder: Has something going on with the lack of social skills and poor metaphor grasping.
* AnguishedDeclarationOfLove
* BadassBookworm
* BrainyBrunette
* BunnyEarsLawyer
* CannotTellAJoke
* CatchPhrase: "I don't know what that means."
** For a while there was also "Don't call me Bones," but she soon learned to accept (but not embrace) the nickname.
* CharacterTitle
* EmbarrassingMiddleName: WordOfGod gives it as [[spoiler:Beulah]].
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: A mixture of Phlegmatic and Melancholic.
* FriendToAllLivingThings: Brennan rarely loses her temper, but she does it every time an animal is hurt or killed out of sheer cruelty. Happens both with [[spoiler:an attack dog that was used to kill someone]] and with [[spoiler:a Siberian Tiger shot to cover evidence]]
* HardOnSoftScience: A particularly wierd example. She's hard on psychology, even though this is generally considered at least as hard a science as anthropology (her own field).
* HollywoodNerd
* HotMom
* HotScientist
* InSeriesNickname: [[CaptainObvious Take a wild guess.]]
* InsufferableGenius
* LastNameBasis
* LiteralMinded: More than anyone who's not a robot should be.
* MeaningfulName: "Temperance" means "moderation or self-restraint in action, statement, etc.; self-control."
** Even more meaningful is the fact that [[spoiler: her name used to be Joy before her criminal parents changed the whole family's names to protect themselves from their former partner in crime; they eventually had to abandon Brennan and her brother to keep said partner from finding and harming their children.]] Many characters point out that Temperance's need for temperance is a direct result of her parents' abandonment and her subsequent experiences in the foster care system, before which she was much more carefree.
* MyBelovedSmother: Christine is barely out of the womb and she's already started, getting suspended from the Jeffersonian's daycare for interfering too much.
* MysteryWriterDetective: A borderline case as her skills as a forensic anthropologist are far more important to solving crimes than any supposedly ability as a writer.
** Especially as [[spoiler:she only writes the [[ShownTheirWork technical aspects]] and [[MindScrew twisted plotting]] of her novels. The characterization and steamy sex scenes are due to Angela's input. It takes them a ''long'' time to even ''realize'' this, as Temperance's writing process was to essentially write {{Michael Crichton}}esque murder mysteries, then loan it to Angela to pre-read, who adds the sex and quips. Once they figure his out, Temperance split the royalties with Angela. Back-dated.]]
*** [[spoiler: Arguably, the characterization comes from Dr. Brennan. Her story about her and Booth shows that she writes it quite well. ]]
* NerdsAreSexy
* NoSocialSkills: Not quite as bad as Zack but enough to count.
* NotGoodWithPeople: Especially in the early seasons.
* ObliviousToLove: To Booth in season five.
* PregnantBadass
* RaisedbyGrandparents: Her grandfather raised her after she was bounced from foster home to foster home.
* RealLifeWritesThePlot: Her pregnancy this season
* SheIsAllGrownUp: Kid Brennan, according to a photo of her winning a science fair ([[ChildProdigy at age 11]]) showed her as kinda chubby. She grows up to be a gorgeous woman (played by Emily Deschanel).
* TheSpock
* StrawVulcan
* SugarAndIcePersonality
* TallDarkAndSnarky
* [[spoiler:TheyDo: With Booth.]]
* UnrequitedLoveSwitcheroo: With Booth in season six.
* {{UST}}: With Booth
** [[spoiler: TheyDo]]
* WhyDidItHaveToBeSnakes: She once commented, "I find it interesting that I'm only afraid of snakes when Booth is around to be jumped upon".

!!Agent Seeley Booth (David Boreanaz)
* AbusiveParents: According to Booth, His dad wasn't exactly a contender for a Father of the Year award.
* AnguishedDeclarationOfLove: It didn't work at first. [[spoiler: [[TheyDo Then it did.]]]]
* AtonementDetective: Booth seems to have a scale in his head, weighing roughly how many kills he made as a sniper versus how many murderers he's caught.
* {{Badass}}
* BerserkButton: If any one threatens, insults or mildly annoys Brennan, Booth seems ready to do violence.
** Also clowns. Even on ice cream trucks.
** Also don't even think about hurting his son. While we haven't really seen this in action, he is on record that his [[PapaWolf protective]] instinct for Parker outweighs his faith in God himself, which is [[RaisedCatholic kinda a big deal]].
** It can safely be assumed that this now extends to [[spoiler: Booth and Bones' daughter Christine]].
* BigBrotherInstinct: Towards his younger brother Jared, to the point where its somewhat unhealthy for them both.
** Also towards Sweets and Wendell.
* BookDumb
* ColdSniper: His job in the Army.
* {{Deuteragonist}}
* DressedToKill: Most of the time.
* TheFace: He's an FBI agent surrounded by {{Lab Rat}}s. While they do their geeky science thing he's talking to witnesses and cracking supects.
* FairCop
* FBIAgent
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: Choleric with a dash of Sanguine
* TheGamblingAddict
* HotDad: To Parker [[spoiler: and Christine.]]
* JerkJock: Booth is a mostly-mellowed version of this trope. While he has outgrown most of the trope's more noxious aspects, he still retains disdain for intellectuals and scientists (although it tends to be more good-natured ribbing with those he gets to know).
* {{Jerk with a Heart of Gold}}
* LastNameBasis
* TheMccoy
* ObfuscatingStupidity: Most of the cast has realized he's doing it by now, but Gordon is the only one that has straight-out called him on it.
* OverprotectiveDad: Baby's not even ''out of the womb'' and he's being this.
* RaisedCatholic
* TheSocialExpert
* [[spoiler:TheyDo: With Bones.]]
* {{UST}}: With Bones
** [[spoiler:TheyDo]]
* [[WhyDidItHaveToBeSnakes Why Did It Have to be Clowns?]] Played over the seasons, [[spoiler:and after he had his brain surgery, he forgot that he supposed to be scared with clowns. To the point Brennan reminded him about it.]]

!!Jack Hodgins (T.J. Thyne)
* AgentMulder
* BunnyEarsLawyer
* ConspiracyTheorist: Though he refers to any of the associated paranoia as simply having all the facts.
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: Sanguine with a dash of Phlegmatic
* GiveGeeksAChance: The object of the trope, with Angela.
* HappilyMarried: To Angela.
* HollywoodNerd
* JerkWithAHeartOfGold
* LastNameBasis: Even his wife rarely calls him Jack.
* NonIdleRich: See SecretlyWealthy.
* OfficialCouple : With Angela
* ScrewTheMoneyIHaveRules
* ScrewTheRulesImDoingWhatsRight: A serious problem of his, considering that he works in an FBI sponsored forensics lab.
* SecretlyWealthy: And hates it. Or at least will go to almost any length to keep it a secret, so he can keep his life as just being the "Bug and Slime guy" of the group.
** [[spoiler:Not anymore. Pelant took care of that in Season 8's "The Corpse on the Canopy".]]
* TheSmartGuy: Will usually end up doing the most hard science in a case.
* TheyDo: With Angela

!!Angela Montenegro (Michaela Conlin)
* AmbiguouslyBrown
* BiTheWay
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: Sanguine
* GoodBadGirl
* HappilyMarried: To Hodgins.
* TheHeart: Often serves as a counterpoint to the team's rational and scientific assessment of a case or victim. Makes sense as she's the only one without any scientific training.
* HotMom
* HotScientist
* OfficialCouple: With Hodgins.
* OopsIForgotIWasMarried: Her big, beefy, forgotten-in-a-drunken-haze island husband. She didn't even remember his name at first.
* NotSoDifferent: More in common with her best friend, Brennan, than might first appear: they both have a rigid code of beliefs and morals, both are incredibly stubborn, and both had a lot of difficulty committing to a long term relationship.
* ReallyGetsAround: To the point that Sweets convinces her that it keeps her from forming stable relationships.
* ShipperOnDeck: She ships Brennan/Booth, by the way.
* TeamMom
* TheyDo: With Hodgins

!!Zack Addy (Eric Millegan)
* {{Adorkable}}: According to many fans.
* AmbiguousDisorder: Even more than Bones, which is saying something.
* DeadpanSnarker: "Apparently, all Angela needed was to hear her job description in a deep African-American tone."
* FaceHeelTurn
** Whether or not it qualifies as a full turn is debatable, as Zack never becomes evil. [[spoiler: He was merely manipulated by a serial killer.]]
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: Phlegmatic.
* HollywoodNerd
* [[spoiler: TheMole]]
* NoSocialSkills: He's been shown to be extremely blunt to the point of rudeness with people he doesn't know well.
* OlderThanTheyLook: Millegan is actually two years older than Emily Dechanel.
* PutOnABus
** TheBusCameBack: In "The Perfect Pieces in the Purple Pond".
* [[spoiler:WoobieDestroyerOfWorlds: As the apprentice to Gormogon.]]

!!Camille Saroyan (Tamara Taylor)
* BenevolentBoss: Much less imposing than her immediate predecessor, although she can still crack the whip if she needs to.
* BlackBossLady
* TheCoroner: Having worked for the New York Police, she's the most comfortable with the fleshy part of the team's job.
* DeadpanSnarker
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: Melancholic
* HotScientist
* TheNicknamer: Hodge-Podge for Hodgins, and Zackaroni for Zack. Oddly, she's one of the only people to call Booth by his first name, Seeley.
** And Vino Delectable for Vincent.
* OldShame: Her stint as an actress in a horror film.
* [[OnlySaneMan Only Sane Woman]]
** OnlySaneEmployee: More levelheaded than Hodgins, less coldly logical then Brennan, and more clinical than Angela.
* ReasonableAuthorityFigure
* WhenSheSmiles: Cam's always gorgeous, but that smile just takes it {{Up To Eleven}}.

!!Lance Sweets (John Francis Daley)
* {{Adorkable}}
* ButtMonkey: A mild case, but yes, both Booth and Bones often treat him like this. Booth sees him as little more than a child, whereas Bones vehemently denies the usefulness of psychology and insults him about it.
* DeadpanSnarker
-->'''Sweets:''' You choked a man until he was unconscious?
-->'''Hodgins:''' A bad man. And you're hinting that if I'd killed him that would make me bad, too?
-->'''Sweets:''' Hinting?
* FanNickname: Baby Duck.
* [[FourTemperamentEnsemble Five Temperament Ensemble]]: Leukine
* HollywoodNerd
* MeaningfulName: He is a ridiculously NiceGuy.
* NiceGuy
* NoRespectGuy: To both Temperance and Booth.
* OfficialCouple : With Daisy.
* OlderThanTheyLook: He's in his 20s, but looks like a 14-year-old.
* Parental Issues: Sweets has them
** AbusiveParents: His birth parents left him with deep physical and emotional scars.
** HappilyAdopted
** ParentalSubstitute: A big part of his relationship with Bones and Booth. His elderly, adoptive parents died shortly before he came to work with them.
* [[spoiler: PhysicalScarsPsychologicalScars]]
* TheProfiler
* TheShrink: Especially to Booth and Bones, but almost everybody's had a turn with him at one point. It's a RunningGag that people wanting advice pop into his office with no warning. Usually, it's not a problem. Usually.

!!Max Keenan (Ryan O'Neal)
* AffablyEvil: Until his HeelFaceTurn
* PapaWolf: Verging on KnightTemplarParent.
** Isn't that like saying GenghisKhan was somewhat overaggressive?
* RetiredBadass: He used to kill people on occasion. Now he bowls.
* ShipperOnDeck: Doesn't see why Booth hasn't gone after his daughter yet, and also bought his daughter a toothbrush-holder for two.

!!Vincent Nigel-Murray (Ryan Cartwright)
* {{Adorkable}}: His enthusiastic reciting of facts earned him the spot of "favorite intern"... both with Brennan and the fans.
* TheAlcoholic: Recovering.
* AttentionWhore
* BerserkButton: Try telling him that Jimi Hendrix is a better guitarist than Jimmy Page. I dare you.
** That was literally the only time he ever got angry about anything. Ever.
* CanNotTellALie: In 'The Babe In The Bar', when he, Sweets, Cam and Brennan lie about knowing that [[spoiler: Angela's pregnant]], he starts whimpering, covers his face and says "Please, I beg of you, don't look at me directly. Just say what you came to say."
* CloudCuckoolander
* CursedWithAwesome: He ended up winning Jeopardy! with his compulsive declaration of facts.
* DeadpanSnarker
* HotScientist
* InsufferableGenius
* [[spoiler: KilledOffForReal]]
* [[spoiler: KillTheCutie: The creators came right out and said they "killed him for heartbreak."]]
* LittleKnownFacts: His are actually true, but no more useful for all that.
* MotorMouth
* NerdsAreSexy: "If I killed everyone who looked at me lustily, I wouldn't have made it out of school."
* NiceGuy
* RavenHairIvorySkin
* [[TwoFirstNames Three First Names]]
* VerbalTic: His random facts seem to be a compulsion and increase when he's stressed.
* WellDoneSonGuy: With Brennan.

!!Daisy Wick (Carla Gallo)
* AscendedFangirl: Doctor Brennan is her hero and working at the Jeffersonian is her life long dream. [[TheKnightsWhoSaySquee She will never let you forget that.]]
* AttentionWhore: A milder example, but still. She always makes her role in a discovery extremely. extremely clear.
* BunnyEarsLawyer: Her quirk being that she never shuts up.
* CloudCuckoolander
* GenkiGirl
* HotScientist
* ManicPixieDreamGirl
* MotorMouth
* OfficialCouple : With Sweets.
!!Gordon Gordon Wyatt (Stephen Fry)
* BerserkButton: [[RantInducingSlight "Fry cook? FRY COOK?!"]]
* CoolOldGuy
* HiddenDepths: He's apparently a [[SupremeChef fantastic cook]].
* LargeHam
* OldMaster: To Sweets. He's older, been a psychologist for much longer, and was able to tear apart Sweet's thesis about Bones and Booth's relationship in less than a minute.
* SesquipedalianLoquaciousness
* TheShrink: Been at it even longer than Sweets, not that that's saying much.
* StephenFry
* [[TwoFirstNames Three First Names]]

!!Caroline Julian (Patricia Belcher)
* CourtroomAntics: She's completely ''full'' of them.
* DeadpanSnarker
* HeelFaceTurn: Her flashback self was rather more politically motivated in her behavior, and accused Booth of same.
* SassyBlackWoman
* ShipperOnDeck: She's actually the one who gets Booth and Brennan to kiss for the first time, due to her "puckish" side and a strategically-placed sprig of mistletoe. [[spoiler:But episode 100 reveals that was actually the second time.]]
* TeamMom: Usually gives at least one member of the team a good talking to in each of her appearances. Bonus points for being the apparently oldest recurring cast member.
* TheBigEasy: She's from N'Awlins, [[{{Catchphrase}} cherie]].
* TwoFirstNames
* VerbalTic: "Cherie".

!!Howard Epps (Heath Freeman)
* AxCrazy
* [[spoiler: DisneyVillainDeath]]
* EvilGenius: Claims to have a I.Q. of 180. According to Zack, however, he's overestimating himself.
* EvenBadMenLoveTheirMamas: Though he also mentioned that he wished she was his first victim.
* FreudianExcuse: His mother, a religious fanatic, washed his hands with ammonia (and made him take baths in it) and taught him that sex was evil. Needless to say, it didn't do his psyche good.
* HadToComeToPrisonToBeACrook: He could be a ManipulativeBastard all along, or maybe he learned it while on death row. When we first meet Epps, he's claiming to be innocent and trying to get exonerated, but it ends up he just reveals he's killed even more people than previously thought, so they have to keep him alive while they process the new bodies. When he returns in season 2, Epps is even more manipulative and playing serial killer games, leading the team on a merry chase with body parts as clues.
* MonsterMisogyny: Literally. Booth even theorizes that Epps hates Brennan because she's a smart, strong, confident woman.
* SerialKiller: Of teenage girls. Fun guy.
* VillainousBreakdown: [[spoiler: In the last episode he appears, after being smug and confident for the majority of time he becomes visibly shaken and angry when he learns that Booth has arrested his mother.]]
* WeaponOfChoice: Murdered his victims with a pipe.

!!Dr. Daniel Goodman (Jonathan Adams)
* BigScaryBlackMan: Less due to any threat of violence, and more due to his authority and imposing presence paired with his [[StopHavingFunGuy low tolerance for shenanigans]]
* TheMcCoy: Oddly, to ''Hodgins'''s Spock, not Brennan's.
* LongBusTrip: His [[PutOnABus sabbatical]] has lasted ''how'' many years now?
* ReasonableAuthorityFigure

!!Clark Edison (Eugene Byrd)
* NaughtyByNight
* NotSoAboveItAll: He loosens up considerably by the middle of season 6.
* OnlySaneMan

!!Wendell Bray (Michael Grant Terry)
* TheEveryman: Came from a humble background and has had a lot of less sophisticated jobs.
* HotScientist
* NiceGuy
* RomanticRunnerUp: He's Angela's replacement for Hodgins when they break up.
* SmokingIsCool: Subverted, as his dad died of lung cancer, and he only holds a cigarette (without lighting it) when he's trying to think like him.

!!Arastoo Viziri (Pej Vahdat)
* {{Fauxreigner}}: To cut down on persecution for his devout beliefs, he pretended to be 'just off the boat'.
* GameOfNerds
* HotScientist
* OohMeAccentsSlipping

!!Colin Fisher (Joel Moore)
* ActorAllusion: Joel Moore [[CelebrityParadox played a major character in]] {{Film/Avatar}}, and one episode has Mr. Fisher and his nerd pals camping outside for the premiere.
* KavorkaMan: Has slept with around a hundred women.
* TheEeyore: Clinically depressed.
* HollywoodNerd

!!Finn Abernathy (Luke Kleintank)
* BigEater: His breakfast order looked to be enough for 2 or 3 people.
* DarkAndTroubledPast: Which gets revealed in a heartfelt conversation with Bones of all people.
* TheNicknamer : Already dubbed Hodgins "Thurston", likely a ''GilligansIsland'' reference to his money.
** And a retaliation for Hodgins rather derisively calling him "Opie."
* NightmareFetishist: Upon pulling a large python [[{{Squick}} from the abdomen of the]] VictimOfTheWeek:
--> '''Finn:''' Oh, I gotta say ma'am, this is the ''best'' damn job ever!
* TheReasonYouSuckSpeech: Given to a deserving Hodgins, who TookALevelInJerkass towards him. Cam approves.
* ReformedCriminal
* SouthernFriedGenius
* TeenGenius
* VitriolicBestBuds: With Hodgins, once they start to get along.

!!Angela's Dad ([[Music/ZZTop Billy Gibbons]])
* AsHimself: Played with since (see below) no one ever actually calls him by name. However, he shares several biographical details with Billy Gibbons, like being in a BluesRock band.
* BadassGrandpa
* EveryoneCallsHimBarkeep: Even though it's Billy Gibbons, no one ever actually call him by name. He's just "Angela's dad".
* OhCrap: When Hodgins asks him for (very strong-willed) Angela's hand in marriage, Angela's dad claims that Hodgins has thus put them both in mortal danger.
* PapaWolf

!!Christopher Pelant (Andrew Leeds)
* CardboardPrison: Formerly had a tracking device intended to keep him under house arrest. It proved utterly useless.
* DeathSeeker: As discovered by [[PapaWolf Hodgins]] [[GoodIsNotNice first-hand]], he actually ''enjoys'' the thought of being killed, primarily because of the [[HeWhoFightsMonsters effect on those responsible]].
* HollywoodHacking: Absurdly proficient at hacking every device imaginable.
* ItsAllAboutMe: A big part of his insanity is a pathological need to be the center of attention.
* InvincibleVillain: Has never been truly thwarted yet, and seems unlikely to ever be.
* JokerImmunity: And ''how''.
* KarmaHoudini: With regularity.
* VillainExitStageLeft: Always has an escape plan when the team manages to get close to cornering him.

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