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 Charles Rahi Chun Dr. Wen Guest Star Johnny Kastl Doug Guest Star Sam Lloyd Ted Guest Star Robert Maschio Todd Guest Star Christa Miller Jordan Guest Star Josh Randall Jake Guest Star Meredith Bishop Melissa Guest Star Kerris Dorsey Kid 3 Guest Star Matthew J. Evans Kid 2 Guest Star Jeff Griggs Hypnotist Guest Star Meredith Roberts Quill Kathy Guest Star Dakota Sky Kid 1 Guest Star Damian Greco Triathlete Racer Guest Star Bill Lawrence Executive Producer Michael Alan Spiller Director Eric Weinberg Writer