Zach Braff Dr. John "J.D." Dorian Actor Sarah Chalke Dr. Elliott Reid Actor Donald Faison Dr. Chris Turk Actor John C. McGinley Dr. Perry Cox Actor Judy Reyes Nurse Carla Espinosa Actor Ken Jenkins Dr. Bob Kelso Actor Neil Flynn The Janitor Actor Tom Cavanagh Dan Guest Star Aloma Wright Nurse Roberts Guest Star Charles Rahi Chun Dr. Wen Guest Star Natalie Farrey Employee Guest Star Susan Grace Woman Guest Star Lyla Graham Old Mother Guest Star Johnny Kastl Doug Guest Star Kelly McCracken Patient Guest Star Bill Lawrence Executive Producer Michael Alan Spiller Director Tim Hobert Writer