Stuart Whitman
Dr. McCarter Purvis
Sandy Dennis
Dr. Enid Bingham
Burl Ives
T.M. Trask
Tom Harvey
McBride
Robert Goodier
Dr. Wilfrid Morton
Ron Hartmann
Dr. John Emmett
Jack Creley
Dr. George Simmons
Allen Doremus
Dr. Carl Bryant
Kenneth James
Clinton
Joseph Shaw
Dr. Franz Heinemann
Clem Hambourg
Pianist
Harvey Fisher
Copter Pilot
Robert Warner
Guard #1
John S. Davies
Doctor
V.K. Saini
V.K. Saini
George Pyfrom
Surgeon #2
Claudia Koropecki
Surgeon #3
Nina Keogh
Trask's Nurse (uncredited)
Robert Mann
Guard #3
James Forrest
Guard #4
John Trent
Director
Henry Denker
Writer
Henry Denker
Executive Producer
Edgar J. Scherick
Executive Producer
Terence Dene
Producer
Michael Manne
Editor
Ron Wisman
Editor
Marc Champion
Cinematography
Dolores Claman
Music
James Keeler
Hairstylist
Pamella Barney
Casting
John Aldred
Sound Recordist
Russel Heise
Sound Mixer
Tony Lucibello
Assistant Production Manager
Chris Holmes
Gaffer
Earle Fiset
Set Dresser
Ralph Brunjes
Sound Editor
Jack McAdam
Art Direction
Alan Simmonds
Assistant Director
Wilf Culley
Property Master
Mogens Gander
Cinematography
Ken Brooke
Makeup Artist
Françoise Franque
Negative Cutter
Brian Walker
Assistant Director
Ron Wisman
Sound Editor
László Szilvássy
Still Photographer
Roger Palmer
Costume Design
Ron Gillham
Key Grip
Honor Griffith
Assistant Editor
Ruby Renaut
Continuity
Marilyn Stonehouse
Production Manager
Roy Smith
Orchestrator