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 Freddy Rodríguez Mark Guest Star Tara Reid Danni Guest Star Christa Miller Jordan Guest Star Robert Maschio Todd Guest Star Aloma Wright Nurse Roberts Guest Star Jennifer Anderson Nanny Guest Star Michael Coleman Another Janitor Guest Star Margaret Easley J.D.'s Mother Guest Star Cody Estes 11-year old J.D. Guest Star Martin Klebba Randall Guest Star Larry Thomas Larry Guest Star Candice Coke Maria Espinosa Guest Star Joselin Reyes Gabriella Espinosa Guest Star Bill Lawrence Executive Producer Randall Keenan Winston Director Janae Bakken Writer