George Hamilton

Character: Jeffrey Hill

Joseph Cotten

Character: Ace

Marie Laforêt

Character: Olga Vodkine

Maurice Evans

Character: Nicolai Vodkine

Wolfgang Preiss

Character: Wilhelm Von Schenk

Karl Lieffen

Character: Helmut

Alexander Hegarth

Character: Brügger

Charlie Hickman

Character: Lieutenant Gilder

Eduard Linkers

Character: Geisling

Al Hoosmann

Character: Police Sergeant

Bob Cheslock

Character: Kauffmann

Carroll Baker

Character: Carroll Baker

Zsa Zsa Gabor

Character: Zsa Zsa Gabor

Lilli Palmer

Character: Lilli Palmer

Arthur Brauss

Character: Insurance Company Employee (uncredited)

Robert Naegele

Character: Ticket Agent at Airport (uncredited)

Philip Roye

Character: New York Police Sergeant (uncredited)

Udo N. von Tyrol

Character: French Policeman (uncredited)

Monika Zinnenberg

Character: Ticket Agent at Airport (uncredited)