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 Amy Smart Jamie Moyer Guest Star Christa Miller Jordan Sullivan Guest Star Sam Lloyd Ted Guest Star Robert Maschio Todd Guest Star Aloma Wright Nurse Roberts Guest Star Leslie David Baker Surgery Patient Guest Star Søren Hellerup Rolf Mueller Guest Star Donald Sage Mackay Dr. Page Guest Star Ingo Neuhaus Hermann Mueller Guest Star Bill Lawrence Executive Producer Will Mackenzie Director Mike Schwartz Writer