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
First Assistant Director
Berto Pelosso
Giorgio Salvioni
Assistant Camera
Mario Masini
Production Coordinator
Jone Tuzi
Novel
Robert Sheckley
Production Secretary
Adriano Pagani
Giorgio Russo
Sound Recordist
Carlo Palmieri
Costume Design
Giulio Coltellacci
Production Design
Piero Poletto
Sound
Emilio Rosa
Alfredo Melidoni
Makeup Artist
Giuseppe Banchelli
Ennio Sensi
Director of Photography
Gianni Di Venanzo
Set Decoration
Dario Micheli
Hairstylist
Lina Cassini
Giovanni Checchi
Assistant Costume Designer
Enrico Sabbatini
Script Supervisor
Renata Clerici