Claudio Brook

Robert Foster

Daniela Bianchi

Arabella

Sydney Chaplin

Inspector Chandler

Jess Hahn

Boris

Yves Vincent

Felton

Paolo Gozlino

Gordon Smash

Stefania Careddu

Katia

Nazzareno Zamperla

Flash

Jacques Herlin

Actor at recital

Anthony Dawson

Dr. Evans

Harriet Medin

Dr. Evans' assistant

Andrea Bosic

Diplomat

Raymond Bussières

Train conductor

Tina Aumont

Dolly

Claudio Biava

George Wang

Chang

Guido Lollobrigida

Gino Turini

Aldo Cecconi

Valentino Macchi

Pietro Ceccarelli

Gang Member

Pietro Torrisi

Claudio Ruffini

Goffredo Unger

John Bartha

Hotel Detective (uncredited)

Bruno Bertocci

Uomo in radazione (uncredited)

John Karlsen

Photographer in Nightclub (uncredited)

Bill Vanders

Newspaper Editor (uncredited)