At the end of episode 1x10, Stef and Lena are officially married, legally cementing their long-term union of ten years.
Callie initially doesn't feel comfortable around her due to her position as a cop, but gradually forms a close bond with her.
While Stef likes to act tough around everyone, especially Lena, it is shown that she cares a great deal about her wife and family, although she won't hesitate to discipline her kids if need be.
Lena Elizabeth Adams Foster (seasons 1–5) is the biracial vice principal of the charter school the kids attend.
For most of the first season, Brandon continues to pursue Callie romantically, even though she warned him that she could be kicked out of the house if they got involved.
Brandon performs at Walt Disney Concert Hall and he writes a Shakespeare Musical for his final year project.
When Callie upsets her donors they seek revenge, trolling her web site with nasty rumours but in this case were true.
Avoiding the wrath of his mother, Brandon moves in with a single mom but finds parenthood a struggle.
After a fainting spell caused by his pills in "House and Home", he decided to join the wrestling team to cope with negative effects of ADHD.
after winning a wrestling scholarship to a school in the mid west, he abandons it when he reveals that half of the team are using steroids.
Also, in season 2, she dyes her hair blonde to fit in when making it on a dance team only to overhear the other girls say she only did because she is Latina.
When developers want to take over the school Mariana and Jude rally the students to their cause.
A power struggle over the control of Anchor Beach leads to the school being saved and Lena as the principal.
Callie displayed symptoms of this condition by acting impulsively, lying, breaking laws, and no regard for her own safety.
Callie has had a troubled life — her mother died in a car accident in which her father was jailed because he was drunk driving.
Initially, Callie opens up mainly to Brandon, and the two develop a romantic relationship, although it is forbidden by the rules of the foster system, which soon meets a heartbreaking end.
She is also the step-daughter of Donald Jacob and the adoptive daughter of Stef and Lena Adams Foster.
At school, he develops a close friendship with a handsome and kind-hearted boy named Connor, a growing relationship which prompts Jude to begin questioning his sexuality.
He deals with the emotional impact of Callie becoming close to her biological family, but realizes that she will always be his sister no matter what.
In the mid-season 3 finale the two admit they love each other for the first time after Connor considers moving to Los Angeles to live with his more accepting mother.
After breaking up with Connor, Jude starts spending more time with Noah (Kalama Epstein), an avid gay churchgoing Christian who has a wild side.
Jude decides to clean up his act in season five by not consuming medicinal marijuana he was getting off his boyfriend, Noah.
Michael "Mike" Foster (seasons 1–5) is a San Diego police sergeant, Brandon's father, and Stef's ex-husband and ex-police patrol partner.
As the series progresses, it is revealed that Mike has a drinking problem due to the break up of his marriage, but joins AA to cope with it.
Since then, Mike helps Ana (Jesus and Mariana's birth mother) come to terms with her addiction and live a clean life.