Michael Callan
Dr. Alec Considine
Dean Jones
Dr. Lew Worship
Telly Savalas
Dr. Dominic Riccio
Stefanie Powers
Gloria Mead Worship
Barbara Eden
Nurse Laura Rogers
Kaye Stevens
Nurse Didi Loomis
George Segal
Dr. Tony "Shiv" Parelli
Inger Stevens
Nancy Terman
Gregory Morton
Dr. Granchard
George Furth
Dr. Phil Osterman
Greg Morris
Dr. Pete Clarke
Lee Patrick
Mrs. Hitchcock
Eddie Ryder
Dr. Walters
Ellie Wood Walker
Madeline Osterman
Michael Fox
Dr. Arthur Hellman
Alan Reed Jr.
Dr. Risner
Gordon K. Kee
Intern
James Mathers
Freddie
Rusty Lane
Dr. Morton Gardner
Adrianne Ellis
Nurse
Michael Vandever
Beep
Sue Ane Langdon
Stella
Adam Williams
Wolanski
Dawn Wells
Bobbie
Peter Hobbs
Dr. Duane
Marianna Hill
Sandy
Ken Mayer
Detective Harper
David Winters
Hood
Norman Cole
Larry
Ken Drake
Parking Lot Attendant
Charles Lane
Connors
Dee Carroll
Nurse Arlene Shaw (uncredited)
Bob Crane
Drunken Prankster at Baby Shower (uncredited)
Linda Lee
Student Nurse (uncredited)
Dal Jenkins
Como
Crew
Robert Cohn
Producer
Gene Milford
Editor
Lucien Ballard
Director of Photography
Wilton Schiller
Author
Earle Hagen
Original Music Composer
John Rich
Director
Wilton Schiller
Screenplay
Don Ament
Art Direction
Richard Mansfield
Set Decoration
Eda Warren
Editor
Richard Soskin
Technical Advisor
Jack Solomon
Sound
Al Wyatt Sr.
Stunts
Dave Grayson
Makeup Artist
Ray Gosnell Jr.
Unit Production Manager
Charles J. Rice
Sound Supervisor
Mike Moder
Assistant Director
George Orrison
Stunts
Ben Lane
Makeup Artist