Cast
Jess Hahn
Boris
Nazzareno Zamperla
Flash
Valentino Macchi
Claudio Biava
George Wang
Chang
Paolo Gozlino
Gordon Smash
Harriet Medin
Dr. Evans' assistant
Tina Aumont
Dolly
Guido Lollobrigida
Aldo Cecconi
Claudio Ruffini
John Bartha
Hotel Detective (uncredited)
Claudio Brook
Robert Foster
Jacques Herlin
Actor at recital
John Karlsen
Photographer in Nightclub (uncredited)
Bill Vanders
Newspaper Editor (uncredited)
Daniela Bianchi
Arabella
Stefania Careddu
Katia
Anthony Dawson
Dr. Evans
Gino Turini
Sydney Chaplin
Inspector Chandler
Pietro Ceccarelli
Gang Member
Andrea Bosic
Diplomat
Raymond Bussières
Train conductor
Pietro Torrisi
Goffredo Unger
Bruno Bertocci
Uomo in radazione (uncredited)
Yves Vincent
Felton