Question: George O'Malley is a fictional character from the medical drama television series "Grey's Anatomy", O'Malley married Callie Torres, played by which Mexican American actress, singer and songwriter?
Sentence (from "Wishin' and Hopin' (Grey's Anatomy)"): Further storylines include Dr. Izzie Stevens (Katherine Heigl) and Dr. Miranda Bailey (Chandra Wilson) continuously seeking patients for their new clinic, Dr. Richard Webber (James Pickens, Jr.) dealing with the repercussions of his upcoming retirement, and Dr. George O'Malley (T.R. Knight) facing negative response from colleagues on his unexpected marriage to Dr. Callie Torres (Sara Ramirez).
Relevant evidence: No