George Hamilton
Jeffrey Hill
Joseph Cotten
Ace
Marie Laforêt
Olga Vodkine (as Marie Laforet)
Maurice Evans
Nicolai Vodkine
Wolfgang Preiss
Wilhelm Von Schenk
Karl Lieffen
Helmut
Alexander Hegarth
Brügger
Charlie Hickman
Lieutenant Gilder (as Chaz Hickman)
Eduard Linkers
Geisling
Al Hoosmann
Police Sergeant (as Al Hoosman)
Bob Cheslock
Kauffmann
Carroll Baker
Carroll Baker
Zsa Zsa Gabor
Zsa Zsa Gabor
Lilli Palmer
Lilli Palmer
Arthur Brauss
Insurance Company Employee (uncredited)
Robert Naegele
Ticket Agent at Airport (uncredited)
Philip Roye
New York Police Sergeant (uncredited)
Udo N. von Tyrol
French Policeman (uncredited)
Monika Zinnenberg
Ticket Agent at Airport (uncredited)