Zach Braff
John 'J.D.' Dorian (22 eps)
Donald Faison
Christopher Turk (22 eps)
John C. McGinley
Perry Cox (22 eps)
Sarah Chalke
Elliot Reid (22 eps)
Judy Reyes
Carla Espinosa (22 eps)
Ken Jenkins
Bob Kelso (22 eps)
Neil Flynn
Janitor (22 eps)
Aloma Wright
Laverne Roberts (18 eps)
Robert Maschio
Todd (15 eps)
Christa Miller
Jordan Sullivan (15 eps)
Tara Reid
Danni (10 eps)
Sam Lloyd
Ted Buckland (9 eps)
Scott Foley
Sean Kelly (9 eps)
Johnny Kastl
Doug Murphy (8 eps)
Frank Encarnacao
Dr. Mickhead (5 eps)
Bellamy Young
Dr. Miller (5 eps)
Charles Rahi Chun
Dr. Wen (4 eps)
Martin Klebba
Randall (4 eps)
Freddy RodrÃguez
Mark (3 eps)
Jason Baumgard
Chet (3 eps)
Michael J. Fox
Kevin Casey (2 eps)
Candice Coke
Maria Espinosa (2 eps)
Donald Sage Mackay
Doctor (2 eps)
Michael Coleman
Another Janitor (2 eps)
Joe Rose
Troy (2 eps)
Christopher Meloni
Dr. Norris (1 eps)
Richard Kind
Mr. Corman (1 eps)
Erik Estrada
Erik Estrada (1 eps)
Nestor Carbonell
Dr. Ramirez (1 eps)
Bernie Kopell
Mr. Moran (1 eps)
Brendan Fraser
Ben Sullivan (1 eps)
Kyle Sullivan
Brian (1 eps)
Warren Munson
Mr. Taylor (1 eps)
Hattie Winston
Margaret Turk (1 eps)
Sean Whalen
Laddy (1 eps)
Maureen McCormick
Maureen McCormick (1 eps)
Julie Warner
Allison (1 eps)
Larry Thomas
Larry (1 eps)
Carrie Stroup
Mrs. Cantwell (1 eps)
Jennifer O'Dell
Stunning Woman (1 eps)
Shelley Malil
Bartender (1 eps)
Lee Arenberg
Dr. Moyer (1 eps)
Portia Dawson
Mrs. Bell (1 eps)
Barry Bostwick
Mr. Randolph (1 eps)
Markie Post
Lily Reid (1 eps)
Jennifer Lothrop
Girl (1 eps)
Alexander Chaplin
Mr. Thompson (1 eps)
George Takei
George Takei (1 eps)
Mike Starr
Mr. Iverson (1 eps)
Dayna Devon
Nurse (1 eps)
Embeth Davidtz
Maddie (1 eps)
Carter Jenkins
Young Todd (1 eps)
Vaughn Lowery
Tracy (1 eps)
Umoja Butler
Big Guy (1 eps)
Brad Koepenick
Mitchell (1 eps)
Bonnie Perlman
Mrs. Farr (1 eps)
Nicholas DiNardo
Delivery Kid (1 eps)
Jerry Farmer
Convict (1 eps)
Michael Hagerty
Will (1 eps)
Randy Davison
Urine Lab Technician (1 eps)
Vince Brocato
Patient (1 eps)
John Hemphill
Patient (1 eps)
Melody Butiu
Cashier (1 eps)
John E. Cheffy
Benjamin (1 eps)
Jace Milstead
Jimmy (1 eps)
Kiran Rao
Brian (1 eps)
Robbie Swift
Bruce (1 eps)
Torrey DeVitto
Gorgeous Girl (1 eps)
Catherine Langlas
Intern (1 eps)
Patrick Macmanus
Frat Boy (1 eps)
Jan Devereaux
Female Resident (1 eps)
Ian Kerr
Chairman of the Board (1 eps)
Fred Ornstein
Bus Driver (1 eps)
Don Perry
Mr. Bober (1 eps)
Kattia Ortiz
Female Resident (1 eps)
Scott Rabideau
Male Resident (1 eps)
Christopher R.C. Bosen
Danny (1 eps)
Patricia Gebhard
Mrs. Koenings (1 eps)
Kaidy Kuna
Father (1 eps)
Adrian Armas
Handsome Man (1 eps)
Adam Biesk
Guy (1 eps)
Yolanda Snowball
Woman (1 eps)
Sheila Wills
Wife (1 eps)
Julia Sanford
Catherine (1 eps)
Cheryl White
Miss Himsel (1 eps)
Nickolaus Brown
Larry (1 eps)
Joel Huggins
Slim (1 eps)
Jessica Kate Meyer
Stephanie (1 eps)
Joe Sabatino
Cop (1 eps)
Jordan Feldman
Scott Gerber (1 eps)
Joyce Fessides
Mrs. Gorski (1 eps)
Janelle Marra
Sheila (1 eps)
Irene White
Janice (1 eps)
Susan Slome
Woman (1 eps)
John Maynard
Doctor (1 eps)
Lawrence H. Toffler
Todd's Father (1 eps)
Zaid Farid
Mr. Strauss (1 eps)
Renee Ryan
Mrs. Janitor (1 eps)
Paul Tigue
Waiter (1 eps)
Cathleen Gallagher
Woman (1 eps)
Michael Edwin
Mr. Bell (1 eps)
Mackenzie Hannigan
Bratty Kid (1 eps)
Josh David Jordan
Jeff (1 eps)
Hank Lindsley
Irv (1 eps)
Brogan Roche
Man (1 eps)
Sybil Azur
Mother (1 eps)
Cheyenne Haynes
Daughter (1 eps)
Jeffry E. Stein
Patron (1 eps)
Margaret Easley
J.D.'s Mother (1 eps)
Art Bonilla
Priest (1 eps)
Dougald Park
Mr. Fitzpatrick (1 eps)
Juan Carlos Cantu
Hector (1 eps)
Lou George
Tailor (1 eps)
Vince Micelli
Priest (1 eps)
Andre B. Blake
Paramedic (1 eps)
Richard Clarke Larsen
Homeless Man (1 eps)
Cody Estes
Young J.D. (1 eps)
Brandon Waters
Young Janitor (1 eps)
David Doty
Priest (1 eps)
Manley Henry
Snoop Dogg Intern (1 eps)
Arthur Roberts
Board Member (1 eps)
Mike Schwartz
Lloyd (1 eps)
Randall Keenan Winston
Leonard (1 eps)
Tom Cavanagh
Dan Dorian (1 eps)
Nicole Sullivan
Jill Tracy (1 eps)
George Miserlis
Crispin (1 eps)
Philip McNiven
Roy (1 eps)
Paul F. Perry
Randall (1 eps)
Michael Hobert
Lonnie (1 eps)
Matt Winston
Jeffrey Steadman (1 eps)