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