Dr. Evelyn Ariza was director of clinical services at St. Sebastian Hospital. Soon after Jack Shephard brought in Sayid Jarrah to treat his wounds, Ariza confronted Jack about Sayid, stating that he was a liability to the hospital. Jack attempted to apologize, though Ariza refused to accept it. The conversation was then interrupted by a telephone call, which Jack apologetically answered, walking away from Ariza. ("The Little Prince")