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 Robert Maschio Todd Guest Star Elizabeth Banks Dr. Kim Briggs Guest Star Sonal Shah Sunny Guest Star Todd Bosley Howie Guest Star Scott Foley Sean Kelly Guest Star Arielle Byron Barista Guest Star Korbi Ghosh Nurse Korbi Guest Star Kit Pongetti Lady Guest Star Bill Lawrence Executive Producer Kevin Biegel Writer Linda Mendoza Director