Marcello Mastroianni

Marcello Polletti

Ursula Andress

Caroline Meredith

Elsa Martinelli

Olga

Salvo Randone

Professor

Massimo Serato

Lawyer

Milo Quesada

Rudi

Luce Bonifassy

Lidia

George Wang

Chinese Attacker

Anita Sanders

Relaxatorium Girl (uncredited)

Pier Paolo Capponi

Terrace Snack Bar Manager (uncredited)

Jacques Herlin

Masoch Club Manager (uncredited)

Mickey Knox

Chet (uncredited)

Gino Pernice

Hunter (uncredited)

Massimo Righi

Journalist (uncredited)

Giovanni Ivan Scratuglia

Priest in Aeroplane (uncredited)