Marcello Polletti
Marcello Mastroianni
Caroline Meredith
Ursula Andress
Cole
Richard Armstrong
Antonio Ciani
Relaxatorium Girl (uncredited)
Anita Sanders
Terrace Snack Bar Manager (uncredited)
Pier Paolo Capponi
Masoch Club Manager (uncredited)
Jacques Herlin
Baron von Richtofen (uncredited)
Wolfgang Hillinger
Chet (uncredited)
Mickey Knox
Hunter (uncredited)
Gino Pernice
Journalist (uncredited)
Massimo Righi
Priest in Aeroplane (uncredited)
Giovanni Ivan Scratuglia
Olga
Elsa Martinelli
Professor
Salvo Randone
Lawyer
Massimo Serato
Rudi
Milo Quesada
Lidia
Luce Bonifassy
Chinese Attacker
George Wang
Victim
Evi Rigano
Martin
Walter Williams
Editor
Ruggero Mastroianni
Producer
Carlo Ponti
Director
Elio Petri
Screenplay
Production Supervisor
Claudio Mancini
Ennio Flaiano
Camera Operator
Pasqualino De Santis
Conductor
Piero Piccioni
Original Music Composer
Tonino Guerra
Novel
Robert Sheckley
Giorgio Salvioni
Production Coordinator
Jone Tuzi
Production Secretary
Giorgio Russo
Adriano Pagani
First Assistant Director
Berto Pelosso
Assistant Camera
Mario Masini
Sound Recordist
Carlo Palmieri
Director of Photography
Gianni Di Venanzo
Production Design
Piero Poletto
Set Decoration
Giovanni Checchi
Dario Micheli
Costume Design
Giulio Coltellacci
Makeup Artist
Giuseppe Banchelli
Hairstylist
Lina Cassini
Alfredo Melidoni
Sound
Emilio Rosa
Ennio Sensi
Assistant Costume Designer
Enrico Sabbatini
Script Supervisor
Renata Clerici