Dr. Alec Considine
Michael Callan
Dr. Lew Worship
Dean Jones
Nurse Laura Rogers
Barbara Eden
Dr. Dominic Riccio
Telly Savalas
Gloria Worship nee Mead
Stefanie Powers
Nancy Terman
Inger Stevens
Nurse Didi Loomis
Kaye Stevens
Dr. Tony "Shiv" Parelli
George Segal
Didi Loomis
Kay Stevens
Dr. Riccio
Telly Savalas*
Dr. Phil Osterman
George Furth
Dr. Granchard
Gregory Morton
Madeline Osterman
Ellie Wood
Dr. Pete Clarke
Greg Morris
Mrs. Hitchcock
Lee Patrick
Chaum
Gordon Kee
Dr. Walters
Eddie Ryder
Freddie
Jimmy Mathers
Beep
Mike Vandever
Madeline Osterman
Ellie Wood Walker
Dr. Arthur Hellman
Michael Fox
Wolanski
Adam Williams
Dr. Risner
Alan Reed Jr.
Stella
Sue Ane Langdon
Intern
Gordon K. Kee
Bobbie
Dawn Wells
Freddie
James Mathers
Dr. Morton Gardner
Rusty Lane
Nurse
Adrianne Ellis
Beep
Michael Vandever
Dr. Risner
Alan Reed Jr.
Dr. Duane
Peter Hobbs
Detective Harper
Ken Mayer
Sandy
Marianna Hill
Larry
Norman Cole
Hood
David Winters
Connors
Charles Lane
Parking Lot Attendant
Ken Drake
Nurse Arlene Shaw (uncredited)
Dee Carroll
Beverly Adams
Drunken Prankster at Baby Shower (uncredited)
Bob Crane