James Mason

Peter Vadassy

Lucie Mannheim

Mme Suzanne Koch

Raymond Lovell

Robert Duclos

Julien Mitchell

Michel Beghin, intelligence chief

Herbert Lom

Andre Roux

Martin Miller

Walter Vogel

Clare Hamilton

Mary Skelton

Frederick Valk

Emil Schimler, alias Paul Heimberger

Patricia Medina

Odette Roux

Anthony Shaw

Major Anthony Chandon-Hartley

Laurence Hanray

Police Commissioner

David Ward

Henri Asticot

Valentine Dyall

Warren Skelton

Joseph Almas

Albert, the Waiter

Patricia Hayes

Woman

Hella Kürty

Hilda Vogel

Ivor Barnard

P. Molon, chemist

Ernst Ulman

Detective in Black Suit

John Baker

Policeman

Mike Johnson

Old Man

Victor Rietti

Restaurant Owner

Hugo Schuster

Inspector