Reparto
Frederick Valk
Emil Schimler, alias Paul Heimberger
Ivor Barnard
P. Molon, chemist
James Mason
Peter Vadassy
Lucie Mannheim
Mme Suzanne Koch
Julien Mitchell
Michel Beghin, intelligence chief
Herbert Lom
Andre Roux
Martin Miller
Walter Vogel
Patricia Medina
Odette Roux
Patricia Hayes
Woman
Raymond Lovell
Robert Duclos
Laurence Hanray
Police Commissioner
Victor Rietti
Restaurant Owner
Valentine Dyall
Warren Skelton
Hella Kürty
Hilda Vogel