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 Tara Reid Danni Guest Star Christa Miller Jordan Guest Star Charles Rahi Chun Dr. Wen Guest Star Johnny Kastl Doug Guest Star Bernie Kopell Mr. Moran Guest Star Robert Maschio Todd Guest Star Aloma Wright Nurse Roberts Guest Star Adrian Armas Handsome Man Guest Star Adam Biesk Guy Guest Star Donald Sage Mackay Doctor Guest Star Sam Menning Mr. Booker Guest Star Yolanda Snowball Woman Guest Star Sheila Wills Wife Guest Star Bill Lawrence Executive Producer Ken Whittingham Director Gabrielle Allan Writer