Carlos Torres

Carlos Torres first appeared in season three when he came to Seattle Grace Hospital to meet George, his daughter's new husband, and later again in season five to discover that Callie is dating a woman. He returned again in season seven for their wedding.

History
Mr. Torres came to Seattle Grace (in My Favorite Mistake) after Callie told him that she had married George. Mr. Torres wanted to make sure his daughter was looked after so at Joe's, he tried to give them money but decided to make sure it was all in Callie's name. George told him that they did not want the money and left. Later, Mr. Torres commended him on standing up to him and told him that he just wanted his daughter looked after.

He returned in Sweet Surrender to see his daughter once more. Almost as soon as he arrived, he slammed George against the wall and asked why he shouldn't kill him for cheating on Callie. Callie quickly defended him by saying that she had cheated on him with Mark too so then he let George go and slammed Mark up against the wall. Callie however convinced him to let go of Mark after telling him she was dating and she was happy. She then asked him to remember she was happy and introduced him to her girlfriend Arizona.

After a short while he came to the decision that Callie had to come home, after an argument with her he went to the Chief and asked him to allow Callie to leave and offered him money. Richard told him that Callie was a grown woman but Mr. Torres instead told him that it didn't matter how old she was, she was still his child. After another fight with Callie, he threatened to cut her off if she refused to go home. Callie stayed anyway and he took away all her money and got all his family to stop speaking to her.

Carlos returned to Seattle Grace again, this time with the family's priest, Father Kevin, in tow. Callie was furious that her father had brought the priest in an attempt to "pray away the gay". Following Arizona talking to both Callie, about how it's not entirely his fault, as it was Callie who changed the game after all this time; and to Carlos, about her upbringing and being the person her father raised her to be, Carlos and Callie forgave each other.

Romantic
He married and had at two daughters, Callie Torres and his step-daughter Aria.

Notes and Trivia

 * He claimed in My Favorite Mistake that Callie was his only little girl, yet in Season 5, it was revealed that Callie has a sister named Aria. But Shonda Rhimes stated through Twitter that the two girls have different fathers.