Top Cast
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