Director
Alberto De Martino
DIRECTOR
Stars (in credits order)
Kirk Douglas
Robert Caine
Simon Ward
Angel Caine
Agostina Belli
Sara Golan
Anthony Quayle
Professor Griffith
Alexander Knox
Professor Meyer
Virginia McKenna
Eva Caine
Spyros Fokas
Colonel Harbin
Ivo Garrani
Prime Minister
Massimo Foschi
Young Arab
Romolo Valli
Charrier
John Carlin
Robertson
Peter Cellier
Sheckley
Gerard Hely
Clarke
Penelope Horner
Caine's Secretary
Caroline Langrishe
Girlfriend
Jenny Twigge
Air Hostess
Richard Cornish
1st Journalist
Denis Lawson
2nd Journalist
John Bancroft
3rd Journalist
Joanne Dainton
Nurse
Geoffrey Keen
Gynecologist
Allan Hendrick
Fanatical Demonstrator
Adolfo Celi
Dr. Kerouac
Domenico Di Costanzo
Asylum patient
Omero Capanna
Asylum Orderlyuncredited
Tony Clarkin
Leader of protesters Megaphone Manuncredited
Maxwell Craig
Reception Guestuncredited
David de Keyser
Dubbinguncredited,voice
Andrea Esterhazy
Doctoruncredited
Vittorio Fanfoni
Asylum Patientuncredited
Vera Goulet
Alan Harris
Aileen Lewis
Teresa Rossi Passante
Hospital nurseuncredited
Sergio Serafini
Lamberto Solfa