Robert Quinn is a recurring character on the Freeform series
After personally reuniting with his kids, Donald willingly signed away his parental rights so Callie and Jude could be adopted by Stef and Lena. In "Adoption Day", it was revealed from Callie's original birth certificate that her biological father is not Donald but Robert Quinn, which delayed Callie's adoption.
Meanwhile, the moms find a pregnancy test in the trash and believe Callie is pregnant with Brandon's baby. Mariana reveals the test is hers and that she had sex with Wyatt. Stef, after some convincing from Oscar, their contractor, agrees to marriage counseling. It's Callie's 17th birthday.
In the show, Sophia and Callie have an almost exact resemblance, a detail that is often mentioned by various characters, due to being sisters. In real life, actresses Bailee Madison (Sophia Quinn) and Maia Mitchell (Callie Jacob) are not related and their similar appearances are possibly a result of good casting.
Jude, or Judicorn if you prefer, is the youngest Adams Foster and Callie's biological half-brother (you can bet that reveal was A Thing). They were put into the foster-care system after their mother died in a drunk-driving accident caused by Jude's father, who went to prison.
Jesus Adams Foster (born Jesus Gutierrez) is the biological son of Ana Gutierrez and Gabriel Duncroft, as well as, the adoptive son of Stef and Lena Adams Foster.
The Fosters. Consequently Colleen is briefly mentioned by a social worker, Bill, to have died when Callie was ten and Jude was six, after which her children were placed into foster care.
Trivia. Callie and AJ have sex for the first time. Jesus gets hit in the head with a nail gun and embeds a nail in his skull.
Callie eventually loses custody of her daughter to Arizona and breaks up with Penny, heartbroken, Penny moves to New York.
Her father died when she was still very young, leaving her to be raised by her mothers. When Callie was planning to move to New York with Penny, Arizona fought Callie for custody. Arizona won, but she ended up making a shared schedule with Callie, saying that Sofia deserved two happy moms.
Later, Kyle was wrongly convicted of the murder of a woman named Martha Johnson. Detective Joe Gray paid the man he was with at the time of the murder, Patrick Molloy, to say he wasn't, and he went to jail instead of the real murderer, Troy Johnson, Martha's grandson, who knew Detective Gray.
Monte is mentioned when Mariana confronts Lena in front of Stef and Sharon about a raunchy GIF she saw on Twitter, suggesting an affair, and the private conversations and whispering Mariana noticed between Lena and Monte. Lena denies the affair and after Mariana leaves, Lena's gets a call from Monte which she rejects.
After breaking up with Arizona Robbins (Jessica Capshaw), Callie moved in with Mark and they had a short fling that resulted in Callie becoming pregnant with Mark's child.
The reason Arizona won that custody battle is because she was the better person to raise Sofia. Callie decided to run off to New York with her girlfriend of a few months and thought it would be fine to drag her child across the country, away from all her friends, away from her school, and away from her other mom.
GEORGE O'MALLEY
After an on-again off-again relationship, she befriends and begins sleeping with Dr. Mark Sloan, AKA "McSteamy." Despite their "friendship with benefits" Callie reconciles with George and they get married in Las Vegas.
Meredith opened the door to Arizona, who was awarded sole custody. She and Sofia happily headed home. Back inside, Callie was distraught. “How the hell did this happen?” she asked Meredith through tears.
They decided to try again for a second child, but after agreeing that Callie would carry it, Callie went to see an OB/GYN and discovered that she had developed adhesions in her uterus since Sofia's birth, meaning she can't carry any more children.
Callie's mother says she doesn't want to hold the baby because she's still eating. To be fair, if you were really hungry would you rather hold a fork in your hand or a baby? (That's a trick question for Hannibal Lecter.)
Doctors consider forty weeks as full term, so premature birth would start at thirty-seven weeks. However, Baby Sofia was born at twenty-three and a half weeks, so she actually fits the category of "micro-preemie"—babies born at less than twenty-six weeks and weighing less than one and three-fourths pounds.
He temporarily moved in with the Fosters when Mike began the process for an official license to foster children in order to legally take him in. In the episode, "Idyllwild", AJ officially became Mike's foster son and moved into Mike's apartment. AJ is portrayed by Tom Williamson.
Callie & Brandon
The will-they-or-won't-they who truly, truly, won't-theyed. Callie and Brandon, after five seasons of tension, didn't end up together. They did what would happen in the real world: They moved on. At the wedding, the show flashes through Callie and Brandon's love affair.
At some point after moving in with Stef and Lena, he was diagnosed with ADHD and was prescribed medication for his condition.
While unconscious, Jesus enters a dreamworld in which he encounters his family members. Callie finds herself in deep trouble when Troy claims that she caused the accident. She ends up in juvenile detention after being questioned without her parents present.
However, she informed Robert that her "forever home" is with the Fosters and that they are her real family. He finally allowed the Fosters to adopt Callie in, "The End of the Beginning".
In 7x20 (just two episodes after the car crash) there's no scar, and we haven't seen it ever again since like 7x19. It was a huge scar, and then it just vanished!? I get that tv-shows show inconsistency all of the time, but it's not a scar from chicken pox. It's a scar from a heart surgery!