Question: When does callie come in grey's anatomy?

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question: What date does Callie Torres first appear in Grey's Anatomy?
short_answers: February 26, 2006
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question: Which episode does Callie Torres first appear in Grey's Anatomy?
short_answers: "What Have I Done to Deserve This?" (2.19)
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question: What date does Callie Torres start to appear in Grey's Anatomy as a series regular?
short_answers: September 21, 2006
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question: What episode Callie Torres start to appear in Grey's Anatomy as a series regular?
short_answers: "Time Has Come Today" (3.01)

Answer: Callie Torres, M.D. is a fictional character from the medical drama television series Grey's Anatomy. She first appeared on episode "What Have I Done to Deserve This?" (2.19) on February 26, 2006. Eventually becoming an attending orthopedic surgeon, the character was originally contracted to appear on a recurring basis, but received star-billing in season 3. She started to appear as a series regular on episode "Time Has Come Today" (3.01) on September 21, 2006.