The characters of the television series ''Series/TheFosters''.

!The Family

!'''Stefanie "Stef" Marie Adams Foster'''
[-(Portrayed by: Teri Polo)-]\\

A beat cop, Stef was married to Mike Foster for a number of years and in the process, gave birth to Brandon. When Brandon was five, having come to the realization of her own sexuality, she divorced Mike and became involved with Lena. Later, they fostered, then adopted the twins.
* ActionMom: She works as a cop, handles and arrests criminals and will fight tooth and nail to protect her kids.
* AmicableExes: With Mike.
* BerserkButton: Her lesbianism and Lena. When [[HotBlooded Brandon]] calls her out on (among other things), that he had no choice in the matter of having two moms (he was five when his parents divorced), Stef quickly loses her cool. Only the fact that Brandon storms out of the house and Lena jumps in prevents her from saying something she might regret.
* BoyishShortHair: As of the last three episodes of season 3.
* FreudianExcuse: Seems to have confidence issues in regards to her relationship with Brandon.
* GoodCopBadCop: In the parenting sense, Stef tends to play bad cop and overall is more straightforward and strict than Lena. Kind of plays into their parental names--Stef is "Mom" which is more formal while Lena is "Momma" which is more casual.
** Ironically, later events in the first season play with the label. We find out that she lies to Internal Affairs about her shooting. Her shooter shot her by accident and dropped his gun in shock which causes it to fire a second time; Mike comes in and, assuming he was still armed as it was a dark room, shot in return. This is an issue because, legally speaking, Mike just shot an unarmed man.
* GoodParents: Stef is a compassionate and loving parent who will always protect and care for her children. A practical plot point in the series.
* HappilyMarried: To Lena from Season One "I Do" onwards.
* HotBlooded: To an extent, though it varies with the person.
* IncompatibleOrientation: With Mike.
* LesbianCop: A plot point in the whole series.
* TheNicknamer: Calls Brandon "B", Mariana "Lovely", Jesus "Love", and so on and so forth.
* OpenMindedParent: Is willing to buy her son Brandon condoms and give Lexi the morning after pill Jesus bought. Over the series Stef is aware that most of her kids are sexually active, and takes it all in stride.
* ParentalIssues: Her relationship with her own parents, her mom tends to act less mature then Stef. More so is her father who disapproved of her homosexuality leading to a strained relationship between them, and when he dies, its before they have a chance to mend their rift.
* TheUnfettered: Fights to keep Callie in the family during the custody battle with Robert Quinn, even resorting to {{Blackmail}}.
* WorkingWithTheEx: Stef and Mike work together as cops.

!'''Lena Elizabeth Adams Foster (née Adams)'''
[-(Portrayed by: Sherri Saum)-]\\

A vice principal, Lena is the heart of the family and takes on cooking, cloths shopping, organization.
* AmbiguouslyBrown: At first, though it's eventually revealed Lena is biracial, she has a black mother and a white father.
* BewareTheNiceOnes: Lena is a kind, sweet mother to children and all-round [[NiceGirl nice person]], but even she gets angry especially when her family is threatened or when her kids get into trouble breaking the rules.
* ButNotTooBlack: Her mother is of the opinion that darker-skinned blacks have it harder than light-skinned blacks. This extends to interracial people like Lena who can be called both black and white (having both as parents). Right or wrong, her mother proceeds to say the following:
-->"You will never know what it's like to be a black woman in America."
* EmbarrassingNickname: She had two in high school -- "Oreo" (because she was biracial) and "Klondike Bar" (after she came out as a lesbian).
* GoodParents: Lena is a compassionate, idealistic woman with a strong maternal bone in her body. She will always be there for her kids
* HappilyMarried: From Season One "I Do" onward.
* HotTeacher: Well, vice principal actually.
* MamaBear: When she confronts Ana after Stef's surgery she warns her to never come near Jesus or Mariana again and when she angrily confronts Jesus's wrestling coach over Jesus' black eye from a violent initiation into the team.
* MixedAncestry: Her mother is black and her father is white.
* QuirkyCurls: She once wanted her hair straightened out in her teens. Stef comforts her she loves her wife's curls.
* ReasonableAuthorityFigure: Fights to keep Jude in school even though he's woefully unprepared for the tests that the school has to give to maintain funding and she realizes that Jude skipping past the waiting list could seem like Nepotism. The reason she does so is that she realizes that separating Jude and Callie again would be traumatic for the both of them and that the reason Jude is behind to begin with is because he's had practically no educational stability.
* ScrewTheRulesImDoingWhatsRight: When Jude misses the required grade on the exam to stay in Anchor Beach by one question, knowing he'd be lost without Callie, she changes one of his answers so that he passes.
* TwoferTokenMinority: Is mixed race (see AmbiguouslyBrown) as well as a lesbian.
* WickedStepmother: Averted. She's really sweet and nice. Brandon considers her his other mom--more so than he considers his biological dad his dad. That said, bio-dad thinks of her in this way and seems intent on undermining Lena's relationship and authority over Brandon. Likewise, Jesus and Mariana consider her their mom.

!!Callie [[spoiler:Adams Foster]]\\
(born Callie Quinn Jacob)
[-(Portrayed by Maia Mitchell)-]

A youth in the foster system, Callie and her brother Jude have bounced from home to home. Over the course of six years, they've been in at least seven different homes before ending up with Lena and Stef. As a long term foster child that's been in some questionable homes, she's learn to live apart from others and trust even less. [[spoiler:By the tenth episode of the third season, she is successfully adopted by the Adams-Fosters.]]
* BigSisterInstinct: For her brother Jude.
* BirdsOfAFeather: With AJ, who like her is a foster kid who cares for his brother immensely and had a difficult upbringing.
* BrokenBird: By the start of the series Callie has already given up on finding a family who would adopt her and Jude or even try to defend herself when someone blames her for anything.
* CoolBigSis: Towards Jude. Also seems to be developing this towards Mariana. And eventually to Sophia as well.
* CosmicPlaything: Poor girl can't catch a break. Her mother dies, dad goes to jail, is [[spoiler: raped by her foster brother, Liam]], goes to jail herself, is abused by foster parents, framed for crimes, beat up, and [[spoiler: NEARLY SOLD INTO PROSTITUTION.]]
* DarkAndTroubledPast: Callie is fresh out of juvie, though if the pilot is any indication, she doesn't really have any sort of rebel streak. The people she's lived with before the Fosters and her birth parents, on the other hand, may have been less than stellar.
* DespairEventHorizon: When she's run away from the Foster's, she's all alone on the streets, and the reveal that her dad, Donald, had been released from prison since over a year before was enough to make Callie cause trouble in a shop and make the owner call the police.
** After her adoption has been delayed time and time again, when Robert, her real birth father, decides he won't sign the abandonment papers and wants her to live with him has her in tears.
* {{Determinator}}: Callie doesn't always known when to let things lie. For better or for worse, she's headstrong in her approach to things.
* HiddenDepths: Callie is very thoughtful and artistic, and processes some of her trauma through her photography projects.
* MamaBear: Despite not being Jude's mother, she tends to fill this role in his life
* NobleBigot: She is mildly homo/transphobic, as she worries that Jude acting different will get him beat up. That said, since Jude ''has'' been beat up before but there's a certain level of FreudianExcuse going on since she has zero issues with Stef and Lena and seems to be the most supportive of [[{{Transgender}} Cole]] out of everyone at Girls United; it may very well be that she's not bigoted but just excessively worried about her brother getting injured or worse.
* OnlySaneMan: Among the siblings she seems to be the one most likely to notice that something is a terrible, terrible idea.
* RapeAsBackstory: Among other parts of her [[DarkAndTroubledPast traumatic childhood.]]
* TheReasonYouSuckSpeech: Jude gives her one after she kisses Brandon, risking being adopted by the Fosters (leading to TheRunaway below).
** Brandon gives her another one when he decides not to pursue another clandestine romance with her when she kisses him after Robert said he wouldn't sign the papers again, that all Callie does is react every time something happens, that she doesn't know what she wants, and she only puts their love first when things go wrong or are hard for her.
* TheRunaway: Callie takes off in mid-season one finale because she and Brandon had kissed, starting their illicit affair, but she wants Jude to be adopted by the Fosters, so she runs off so as not to jeopardise his adoption.
* TheScapegoat: Often. She's grown to accept it, given her experiences in foster care.
* SheCleansUpNicely: Now and then.
* TomboyAndGirlyGirl: The tomboy to Mariana's girly girl.
* TroubledButCute: A rare FemaleExample. She's been in trouble with the law and had a difficult upbringing, but has no shortage of guys interested in her.
* TheVamp: Mike sees her as this, because she slept with both his biological son Brandon and foster son AJ. A possible case of SlutShaming.

!!Jesus Adams Foster\\
(born Jesus Gutierrez)
[-(Portrayed by: Jake T. Austin (seasons 1-2), Noah Centineo (season 3-present))-]\\

Mariana's twin brother, Jesus is the aloof free spirit of the kids. That said, he's just as studious as his siblings and in many ways, a lot more wise and responsible. Often however his desire to protect his sister get in the way of him doing things for himself.
* AmbiguousDisorder: Is this in the pilot before being revealed to have...
* AttentionDeficitOohShiny: Relatively speaking, realistically portrayed. Impulsive decisions, an inability to keep track of simple things (like remembering to take his medication, as in the second episode), and often forgetting what's been told to him (such as multiple reminders about skateboarding in the house) are common symptoms of ADHD.
* BigBrotherInstinct: Towards Mariana. He's also starting to show signs to Jude, but seems to be a bit awkward and unsure how to handle some situations.
* DaddyIssues: In season 3B, he meets his birth father, Gabe, for the very first time and is naturally curious, wanting a relationship with him, but starts to disregard the fact Gabe is on the sex offenders list, and Gabe's rejection leads to him drinking alcohol, and causing trouble for his father.
* FoolishSiblingResponsibleSibling: Initially appears to be the foolish sibling to both Mariana and Brandon's responsible sibling, but is actually revealed to be the most responsible out of the three.
* HappilyAdopted: To the point where he's pretty offended that Mariana is too embarrassed to dance with their moms during the father-daughter dance of her quinceañera--though the fact that Mariana also asks Mike (Brandon's biological father) of all people doesn't help.
* HasAType: He tends to fall and hook up with Mariana's friends including Lexi in Season 1 and Hayley in Season 2. It drives Mariana crazy.
* HonorBeforeReason: Partially as a side effect of his ADHD (it makes him more impulsive in the moment), but he tends to be pretty overtly protective of those around him in the most direct way possible even if it's maybe not the smartest approach. He offers advice to Brandon, stands up to a jock twice his size who's hassling Lexi, and spontaneously takes the blame for selling his medication instead of Mariana.
* IllBoy: As a result of a TBI, he now has seizures and has major problems with his memory, speaking, and purposeful movement.
* WrestlerInAllOfUs: He takes up wrestling to cope with his heightened aggression and naturally takes to it.

!!Mariana Adams Foster\\
(born Mariana Gutierrez)
[-(Portrayed by: Cierra Ramirez)-]\\

Jesus's twin sister, she's the girl of the house whom everyone else babies. Not that she minds, as she enjoys the attention. Though on the exterior, she's a studious and straightforward girl, her internal insecurities often compel her to make less than wise decisions and clam up about issues.
* BigSisterInstinct: Develops this towards Jude.
* BrattyTeenageDaughter: Is willing to sell Jesus' important medications for money. [[spoiler:Then lets her siblings take the fall for doing so when caught--first Callie (who doesn't resist since she's learned from previous foster parents that her status as an outsider gives her zero credibility), then Jesus (who takes the bullet to protect her).]]
* FoolishSiblingResponsibleSibling: Initially appears to be the responsible sibling to Jesus' foolish sibling, but is actually revealed to be the more foolish one.
* HappilyAdopted: Loves Lena and Steph, but also vies for the love of her birth mother.
* ItsAllMyFault: Twice. The first when Lexi's parents discover she had have sex and when Jesus goes to their biological mother's house and Stef gets shot when she went searching for him.
* KarmaHoudini: Didn't suffer any consequences over selling her brothers medications. Subverted when Jesus sneaks off to help their birth mother get into a shelter for battered women. His disappearance causes her to confess to her moms what she's been doing. This results in Stef getting shot when she and Mike go to Ana's house to look for Jesus.
* MommyIssues: Not with her moms but with her birth mother. But it does spill over into her relationship with her moms. When she feels guilty that Callie has taken the blame for something she's done, she tells Jesus that if she confesses, she fears that Stef and Lena will stop loving her. As the first season evolves, this becomes a regular thing we find that she worries about.
* PlayingSick: Apparently does this a lot, to the point where no one believes she's actually sick in the pilot.
* SpoiledBrat: Refuses to be happy for her friend and her brother simply because it will ruin her party. That's the entire reason why they didn't want to tell her before the party. For some extra context, Jesus was initially reluctant to have the relationship to begin with because of Mariana. Also, of course, Jesus and Mariana are twins--he graciously gives up any sort of celebration for himself so that Mariana can have her quinceañera.

!!Brandon Foster
[-(Portrayed by David Lambert)-]

Stef's biological son with Mike. The eldest son, he tries very hard to fly the straight and narrow. But when Callie enters the family, things change for him.
* BerserkButton: When it comes to where he stands in the family. He lays it into his mom when he considers going to live with Mike when he says he didn't get a choice who to live with during the divorce or he was going to have two moms. Later he blows up that he's always expected to stand up, adjust and make room for all the other kids after his moms take them in and he doesn't have a say in the matter.
* BreakTheCutie: Happens to him near the end of Season 1.
* EtTuBrute: In Season 3, he's pissed at his [[{{Hypocrite}} moms]] after learning that Callie and AJ shared a kiss whilst they were fostering AJ and they covered it up to not embarrass them in front of the family but they don't mind humiliating him when his relationship with Callie is under investigation by social services. See also BerserkButton.
* FoolishSiblingResponsibleSibling: Nominally the responsible one against Jesus, but in the second part of the first season seems to be becoming more irresponsible especially in regards to his feelings with Callie, thus causing her to run away from the Fosters, and then telling his mothers about it later on.
** His relationship with Callie takes a new turn when his moms have to take out a restraining order against him in Callie's name.
** Later he joins [[{{TheBully}} school jock/bully Vico]] in making and selling fake [=IDs=] at school which gets him arrested.
* FromBadToWorse: Practically almost every action Brandon does ends up turning an ''already'' bad situation that ''he'' caused into an even worse situation.
* GenreBlind: It takes his brother Jesus (nominally the rebel between the two) to point out that when your girlfriend catches you hanging out with another cute girl (who also happens to be living with you for the indeterminate future), your girlfriend will probably be jealous in the least. Jesus later suggests Brandon do something big and nice for Talya in compensation, [[spoiler:to which Brandon ultimately stands up Talya in order to hang out with Callie]].
* HasAType: Seems to be into BrokenBird girls, and coming to their rescue.
* HotBlooded: Traits he happens to share with Stef.
* LoveHurts: His relationship with Callie.
* MommasBoy: The closer of the children to Stef.
* NiceJobBreakingItHero: [[spoiler:He inadvertently made Callie run away in "I Do".]]
* ThePerfectionist: When it comes to piano.
* TookALevelInDumbass: Throughout the first season. At the beginning, he's an honors student like Mariana who has no trouble with the law or school. [[spoiler:In the season finale, Brandon has been arrested and is almost expelled from school. He also sleeps with his father's girlfriend (possibly ex-girlfriend at the time; it's a little unclear).]]
* UnwittingInstigatorOfDoom: Brandon kissing Callie inevitably caused a vast majority of the drama during the second half of season 1.
* WhatTheHellHero: Brandon gets called out a '''lot''' on his actions throughout the season.

!!Jude [[spoiler:Adams Foster]]\\
(born Jude Jacobs)
[-(Portrayed by Hayden Byerly)-]

Callie's little brother. The innocent one. He isn't the most talkative, but that doesn't mean he isn't paying attention. [[spoiler: He is officially adopted by the Adams-Fosters in Season 2 after his biological father, Donald Jacob, relinquishes his parental rights. However, they were unable to do the same for his now-revealed-to-be ''half''-sister Callie until the tenth episode of the third season.]]
* AdorablyPrecociousChild: He really is. And he knows it.
-->'''Callie''': How do you know that?\\
'''Jude''': I pay attention. (shrug)
* AmbiguouslyGay: And AmbiguousGenderIdentity, as well--he's a bit too young for such things to be apparent as of yet. The first thing we ever hear about him is that be for beat up for trying on a dress. [[spoiler:The ambiguity goes away as his crush on Conner comes to the surface, and Jude comes to identify as gay. And the then ambiguity ''returns'', as Jude develops a possible crush on a girl, making him AmbiguouslyBi.]]
* BookDumb: Primarily because he's been in seven schools in four years but there's subtle suggestion that he may have some sort of learning disability.
* BreakTheCutie: Temporarily turned into a CuteMute.
* BrokenBird: A more subtle example than Callie. His bad experiences with foster homes have developed a fear of being taken away for being anything but an ExtremeDoormat
* ExtremeDoormat: Deconstructed. His to keep quiet and just agree with what other people say comes from a fear of being expelled from the foster home.
* IfItsYouItsOkay: With Connor, who is openly gay.
* TheReasonYouSuckSpeech: Gives one to Callie after she [[spoiler: kisses Brandon, risking being adopted by the Fosters]]
* TookALevelInJerkass: He's gotten a little edgier since hitting puberty.
* WholesomeCrossdresser: We only have one instance of this so whether it's a one time thing or not is unclear. [[spoiler: But his previous foster dad caught him goofing around with a dress and promptly started to beat the crap out of him. This is what prompted Callie to beat the crap out of the guy's car with a bat and land her in juvie.]]
* WiseBeyondHisYears: He notices the flirting between Jesus and Lexi, makes a double sided comment to Jesus about it, and picks up on Talya's antics. But like with Callie, he's learned to not say anything.

!!Mike Foster
[-(Portrayed by Danny Nucci)-]

Stef's ex husband and fellow cop. The loss of his wife to another woman still stings him, though he tries to be as civil as possible about it. Nevertheless, he still struggles to keep Brandon, his son, in his life.
* TheAlcoholic: He is a functional one, though barely at that. In the past, his divorce tipped him over the edge. In the present, [[spoiler: Stef's shooting]] may result in a relapse.
* AmicableExes: With Stef.
* ArmorPiercingQuestion: On the receiving end of one from his biological son, Brandon, who calls him out for being so distant and not really having a strong relationship with him (not to mention, antagonizing Lena, who Brandon likes).
* CoolUncle: Has shades of this with the other children.
* ParentalNeglect: He admits that since he considers Stef and Lena excellent parents, he had been neglectful of Brandon.
* TheRival: It's unspoken but clear among all parties that he considers both Lena and her relationship with his ex a challenge. Whether it's mild homophobia, a sense that he failed in a relationship, or that he still has feelings for Stef is unclear and it may be all of those reasons and more.
* WorkingWithTheEx: Stef and Mike work together as cops.

[-(Portrayed by: Madisen Beaty)-]

Brandon's girlfriend at the start of the series. At first, she seems like your normal typical girl next door. But the arrival of Callie throws a wrench into her world and she doesn't take it well.
* AlphaBitch: To an extent. [[spoiler:She spread rumors that it was Callie, not Mariana, who was selling pills and snooped around Callie's things to find anything that might be useful to her. All in an attempt to maintain her relationship with Brandon/drive Callie away.]]
* BitchInSheepsClothing: Is perfectly nice to Brandon, but seems to be doing all she can to get Callie sent away. Every time any of their conversations steers toward Callie, she asks, "Has she been sent away yet?" [[spoiler: However, if the trailer for the next episode is any indication, Brandon does eventually see through her act.]]
** [[spoiler: He does. They break up. Whether she'll be back to wreak havoc remains to be seen since she also revealed some of the information she gathered on Callie's past to him.]]
* TheBusCameBack: Is shown at Callie's senior project presentation a couple of seasons later, and seems to have TookALevelInKindness.
* ClingyJealousGirl: Though in her defense, Brandon unintentionally does things to strain their relationship. On the other hand though, this doesn't excuse her catty behavior.
* JerkAss: she occasionally has flashes of being a nicer person, but Callie seems to bring out the worst in her, even after she and Brandon break up
* JerkassHasAPoint: Her boyfriend did have a crush on Callie, which was inappropriate for a number of reasons. Not that this justified Talya's treatment of Callie.
* WhatHappenedToTheMouse: Has almost never been seen since her and Brandon's nasty break-up in the first season.

[-(Portrayed by Alex Saxon)-]

* ConspiracyTheorist: Downplayed for laughs during "Honeymoon".
* HiddenDepths: He is very good at drawing.
* IWantMyBelovedToBeHappy: Lets go of Callie for this reason.
* LiarRevealed: [[spoiler:The first house he brought Cali to wasn't his. Especially bad seeing if Cali got caught, she'd be in juvie.]]
* OppositesAttract: [[spoiler: Hooks up with Mariana.]]
* WildTeenParty: Throws one before he moves out of his old house, his family having been foreclosed on.
** [[spoiler: exploited by him. He wanted people to ruin the house as revenge for being taken from them when his mother worked so hard to buy it.]]

!!Lexi Rivera
[-(Portrayed by Bianca Santos)-]

* BewareTheNiceOnes: [[spoiler: when she discovers she and her parents are undocumented she exploits it to blackmail her parents so she isn't sent to another school]]
* SatelliteLoveInterest: For Jesus. We really don't know much about her other than the fact that she's Mariana's best friend.
* VitriolicBestBuds: From her hooking up with Mariana's brother, to their competition for student president, some serious tension exists between these buds.
* WhatTheHellHero: Calls out Jesus on the fact that he's not pursuing their attraction to each other purely because Mariana told him not to without any real reason other than that they're friends.

(-[Portrayed by: Amanda Leighton]-)

* DeadpanSnarker
* InformedJudaism: Brings kugel to the memorial service for Stef's father.
* TheLadette: The only girl on the wrestling team, and constantly teases Jesus that she's better than he is.
* SatelliteLoveInterest: For Jesus.
* TomboyAndGirlyGirl: She is definitely more of a tomboy than Jesus' other love interest, Lexi.

!!Connor Stevens
[-(Portrayed by: Gavin Macintosh)-]

* AbusiveParents: In the summer finale, he shows up with a very suspicious-looking bruise (that his apparently homophobic father says is from a doorjamb). Riiight...
* AmbiguouslyBi: Connor and Jude [[NoodleIncident did ''something'']] in that tent; it's unclear what it was. However, Connor also seems to be at least sort of attracted to girls, but the word "bisexual" is never actually used.
** Eventually comes out as gay.
* StraightGay: Eventually comes out of the closet.

!Girls United
!!Rita Hendricks
[-(Portrayed by Rosie O'Donnell)-]

[-(Portrayed by Daffany Clark)-]

[-(Portrayed by Tom Phelan)-]

!!Liam Olmstead
[-(Portrayed by Brandon W. Jones)-]

* Jerkass: Made Callie and Jude lose the best foster house they had when he seduced Callie, threaten Callie when she tried to warn another girl they had brought to the house and [[spoiler: Raped Callie when they still lived with his family.]]
* KarmaHoudini: He has suffered no consequences for his actions against Callie.
** Averted near the end of Season 2, where he is finally caught and arrested by Stef.

!!Robert Quinn
[-(Portrayed by Kerr Smith)-]

* LukeIAmYourFather: To [[spoiler:Callie]].
* SecondLove: Always felt that he'd settled and that the true love of his life was always the poor girl that he'd been forced to dump.
* UptownGirl: Rich guy who was unable to marry his first love due to her social status and never learned that he'd fathered a child by her.
* YourCheatingHeart: Currently separated from his wife as a result of this; it was this that made him realize that he truly loved her.

!!Sophia Quinn
[-(Portrayed by Bailee Madison)-]

Robert's daughter and [[spoiler:Callie]]'s half-sister.
* AllGirlsLovePonies: With a heavy helping of "Equestrian is a rich person's hobby."
* AmbiguousDisorder: It's more than run of the mill teen angst; her intense emotional reactions and reckless behavior result in her being institutionalized.
* AttemptedSuicide: When she feels rejected by her newly discovered half-sibling, [[DrivenToSuicide she walks out into traffic.]] It's later revealed that she legitimately has a psychological disorder.
* BigSisterWorship: To her half-[[spoiler:sister, Callie.]]
* ItsAllAboutMe: Goes beyond the usual only-child syndrome. Deconstructed in that she has some legitimate mental health issues.
* LonelyRichKid: Arguably her defining trait. She's elated to find out she has a sister and gets attached to her very quickly.
* SpoiledBrat: Sometimes; Callie explicitly calls her this just before she [[DrivenToSuicide walks into traffic]].