Kirk Douglas

Robert Caine

Agostina Belli

Sara Golan

Simon Ward

Angel Caine

Anthony Quayle

Professor Griffith

Adolfo Celi

Dr. Kerouac

Romolo Valli

Charrier

Ivo Garrani

Prime Minister

Spiros Focás

Harbin

Massimo Foschi

Young Arab

Virginia McKenna

Eva Caine

John Carlin

Robertson

Alexander Knox

Meyer

Vittorio Fanfoni

First Asylum Patient

Eugenio Masciari

Second Asylum Patient

Sergio Serafini

Third Asylum Patient

Domenico Di Costanzo

Fourth Asylum Patient

Geoffrey Keen

Gynecologist

Allan Hendrick

Fanatical Demonstrator

Peter Cellier

Sheckley

Gerard Hely

Clarke

Caroline Langrishe

Girlfriend (as Caroline Horner)

Penelope Horner

Caine’s Secretary

Jenny Twigge

Air Hostess

Richard Cornish

1st Journalist