Stuart Whitman

Dale Nelson / Arthur

Carol Lynley

Cynthia Lee Albright

Roddy McDowall

Martin Ashley

Lauren Bacall

Dr. Edwina Beighley

Olive Deering

Mrs. Mellon

أوسي ديفيس

Capshaw

Donald Buka

Psychologist

Paulene Myers

Dr. Walden (as Pauline Myers)

Evadne Baker

Intern

Robert J. Wilke

Technician Mike Newton (as Robert Wilke)