Robin Williams
Hunter 'Patch' Adams
Monica Potter
Carin Fisher
Philip Seymour Hoffman
Mitch Roman
Daniel London
Truman Schiff
Harve Presnell
Dean Anderson
Barry Shabaka Henley
Emmet
Harold Gould
Arthur Mendelson
Steven Anthony Jones
Charlie
Jason Aaron Baca
Patch Pirate
Ismael 'East' Carlo
Hispanic Father
Andy Arness
Orderly (uncredited)
Geoff Fiorito
3rd Year Student
Samuel Sheng
3rd Year Student
Piers Mackenzie
Dr. Hashman
Alex Gonzalez
Hispanic Boy
Richard J. Silberg
Psych Patient
James Anthony Cotton
Psych Patient
Michael X. Sommers
Psych Patient
James Carraway
Psych Patient
J. Stephen Coyle
Psych Patient
Wanda McCaddon
Woman in Lobby
Wanda Christine
Nurse Klegg
Lorri Holt
Pediatric Nurse
Stephanie Smith
Laughing Nurse
Vivis Colombetti
Hysterical Woman (as Vivis)
Lydell M. Cheshier
Younger Man
Kelvin Han Yee
Orderly (as Kelvin Yee)
Doreen Foo Croft
Asian Woman (as Doreen Chou Croft)
Randy Oglesby
Pinstriped Man
Vilma Vitanva
Maria (as Vilma Vitanza)
Bonnie Johnson
Walcott's Secretary
Karen Pavlick
Mrs. Davis (as Karen Michel)
Katherine Fitzhugh
Mrs. O'Bannon (as Katherine A. Fitzhugh)
Kyle Timothy Smith
Davis Son
Shannon Orrock
Receptionist
George Lee
Boardroom Doctor (as George Lee Masters)
Dan P. Hannafin
Boardroom Doctor (as Daniel P. Hannafin)
Roger W. Durrett
Boardroom Doctor
Ralph David Westfall
Gynecologist
Thom McIntyre
Gynecologist
Michael Stanton Kennedy
Gynecologist (as Michael Kennedy)
David Acuff
Dr. Anderson (uncredited)