Patrick O'Neal
Richard Cutting
Patrick O'Neal
Richard Cutting
Joan Hackett
Dominique Laurant
John Gielgud
Curt Valayan
Herbert Lom
Matt Wilson
Eric Portman
Notary
Peter van Eyck
Walter Green
Oskar Homolka
Inspector Ruff
Leon Greene
The Big Man
Kent Smith
Mr. Eversley
Philip Ober
Bohlen
Fifi D'Orsay
Mrs. Hennie
Éva Szörényi
Landlady (as Eva Soreny)
Cynthia O'Neal
Felice Valayan (as Cynthia Baxter)
Martin Miller
Police Chief (uncredited)
Charles H. Radilak
Manager (uncredited)
Erik Sorenson
Bellboy (uncredited)
Betty Bresler
Secretary (uncredited)
Joanne Ludden
Receptionist (uncredited)
Walter Friedel
Secretary (uncredited)
Karl Bruck
Waiter (uncredited)
Walter Janovitz
Waiter (uncredited)
Albert D'Arno
Waiter (uncredited)
Ann Prentiss
Hotel Party Girl in Red Dress (uncredited)
John Beckman
Art Direction
George James Hopkins
Set Decoration
Jean Burt Reilly
Hair Supervisor
Jimmy Lydon
Producer
George R. Rohrs
Editor
Gordon Bau
Makeup Supervisor
Fred Carson
Stunts
Gil Kissel
Assistant Director
Harold Lipstein
Cinematography
William Conrad
Executive Producer
Richard Farnsworth
Stunts
Stanley Jones
Sound
Charles Bonniwell
Unit Manager
Doris DeHerdt
Script Supervisor
Sheldon Reynolds
Writer
Sheldon Reynolds
Director
Enzo Barboni
Director of Photography