Robert Caine
Angel Caine
Sara Golan
Professor Griffith
Professor Meyer
Eva Caine
Colonel Harbin (as Spiros Focas)
Prime Minister
Young Arab
Charrier
Robertson
Sheckley
Clarke
Caine's Secretary
Girlfriend (as Caroline Horner)
Air Hostess
1st Journalist
2nd Journalist
3rd Journalist
Nurse
Gynecologist
Fanatical Demonstrator
Dr. Kerouac
Asylum patient
Asylum Orderly (uncredited)
Leader of protesters Megaphone Man (uncredited)
Reception Guest (uncredited)
Dubbing (voice) (uncredited)
Doctor (uncredited)
Asylum Patient (uncredited)
Hospital nurse (uncredited)