Jack of Diamonds

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)