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 Chrystee Pharris Kylie Guest Star Tara Reid Danni Guest Star Christopher Darga Homeless Steve Guest Star Johnny Kastl Doug Guest Star Sam Lloyd Ted Guest Star Robert Maschio Todd Guest Star Christa Miller Jordan Guest Star Aloma Wright Nurse Roberts Guest Star Robert E. Beckwith Dr. Johnson Guest Star Frank Cameron Dr. Mickhead Guest Star Michael Hobert Lonnie Guest Star Loren Lester Vet Guest Star Gary Rubenstein Patient Guest Star Bill Lawrence Executive Producer Michael Alan Spiller Director Tad Quill Writer