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 Paul Adelstein Dr. Stone Guest Star Sam Lloyd Ted Guest Star Robert Maschio Todd Guest Star Philip McNiven Roy Guest Star Christa Miller Jordan Guest Star George Miserlis Crispin Guest Star Paul F. Perry Randall Guest Star Travis Schuldt Keith Guest Star Hayden Bromberg Another Kid Guest Star Ming Lo Dr. Kim Guest Star Christina Miles Gloria Guest Star Andrew Miller Baby Jack Guest Star Rowbie Orsatti Pilgrim Kid Guest Star Mike Peebler Male Patient Guest Star Brad Sachs Male Patient 2 Guest Star Paul Shively Mr. Ketay Guest Star Randall Keenan Winston Leonard Guest Star Jordan Zucker Lisa Guest Star Bill Lawrence Executive Producer Joanna Kerns Director Bill Callahan Writer