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