is a fictional character from the medical drama television series Grey's Anatomy, which airs on the ABC in the United States.

Introduced in Season 2 as a senior orthopedic resident, Torres initially serves as a love interest for intern George O'Malley (T. R. Knight).

[a] Ramirez's portrayal of Torres was highly praised by television critics, and the character grew significantly in popularity as the series progressed.

Callie Torres is introduced as an orthopedic surgery resident with a romantic interest in intern George O'Malley (T. R. Knight).

Conflicted, O'Malley confides in fellow intern Izzie Stevens (Katherine Heigl) about his marriage woes, leading to a drunken one-night stand between the two.

Shortly thereafter, pediatric surgeon Arizona Robbins (Jessica Capshaw) enters Torres' life, and they begin dating.

Their relationship faces challenges when Torres comes out to her father, Carlos (Héctor Elizondo), who disowns her, cutting her off both financially and emotionally.

When Torres is denied an attending position, she publicly rebukes Chief Richard Webber (James Pickens Jr.) and resigns, taking a job at Mercy West Hospital.

Her father eventually accepts her sexuality, but when Torres expresses her desire for children, Robbins disagrees, leading to their temporary breakup.

When Robbins is offered a prestigious grant to treat children in Malawi, Torres reluctantly agrees to move with her for three years.

Obstetrician-gynecologist Addison Montgomery (Kate Walsh) performs an emergency surgery to save Torres' life and deliver their premature baby.

After recovering from her injuries, Torres navigates family tensions, particularly from her mother (Gina Gallego), who disapproves of the wedding and their daughter, Sofia.

Torres makes the difficult decision to have Alex Karev (Justin Chambers) amputate Robbins' leg to save her life, which causes deep resentment in their relationship.

Callie then begins dating Penny Blake (Samantha Sloyan), who is later revealed to have been one of Derek's doctors on the day of his death.

When Callie plans to move to New York with Penny and take their daughter Sofia with her, Arizona sues for sole custody.

Later, Arizona offers a shared custody agreement, allowing Callie to relocate to New York while ensuring Sofia spends time with both parents.

The American Broadcasting Company (ABC) described Callie Torres as "driven," "determined," and "outgoing", while also noting her weaknesses as "defensive" and "impulsive".

"[9] At the time of Torres's initial appearance, she was somewhat disliked by fans, largely due to her perceived interference in the relationship between George O'Malley (T. R. Knight) and Meredith Grey (Ellen Pompeo).

Towards the end of the fourth season, Torres grew closer to cardiothoracic surgeon Erica Hahn (Brooke Smith), forming a relationship that fans affectionately dubbed "Eri-Cal", and later referred to as "Callica" by Michael Ausiello of Entertainment Weekly.

"[14] Before continuing with the storyline, the show's producers consulted with the Gay & Lesbian Alliance Against Defamation (GLAAD) to ensure they maintained realism throughout.

[14] Trish Doolan, star of April's Shower, was invited to consult in the workshop sessions, noting, "They were really wanting to be truthful to the two characters they're focusing on in the woman-woman relationship.

[16] Rhimes praised the chemistry between Callie and Arizona, even comparing it to the show's primary couple, Grey and Derek Shepherd (played by Patrick Dempsey),[17] stating, "They have that little thing that makes you want to watch them.

Series writer Peter Nowalk offered the insight:I totally understand why Arizona wouldn't want to date a newborn.

Reviewing the Season 3 premiere, she wrote that the writers should give up on Callie, explaining that they had made her "far too obviously the 'weird girl', but there's nothing underneath her brusque persona.

"[24] However, Callie's marriage to O'Malley was well-received; Staci Krause of IGN wrote: "Their relationship has been a roller-coaster, and it was nice to see this turn of events, as she really is a perfect contrast to George.

"[14] Trish Doolan and Nikki Weiss, invited by GLAAD to consult with Grey's Anatomy producers on the storyline, praised the effort put into researching the issue by the writers and actors involved.

"[16] Regarding the series' musical episode, Nicole Golden of TV Fanatic praised Ramirez's rendition of Snow Patrol's "Chasing Cars" as "amazing" and referred to their performance in Kate Havnevik's "Grace" as "beautiful".

[30] Margaret Lyons of New York Magazine appreciated the evolution of Bailey and Torres's friendship in the first half of Season 9, describing it as "the one bright-spot": "They joke, they tease each other, they offer sage love advice to one another, now that they're both on their second marriages.