Marianne Séverin
Simone Renant
Michel Dunan, Alain's look-alike / Alain de Norbois, missing man
Michel Auclair
Nicole Gamma
Paul de Norbois
Jean-Jacques Duverger
Adolphe Mercier, businessman
Robert Vattier
Investigating judge
Jacques Castelot
Carole de Norbois
Geneviève Page
Reine Charmy
(uncredited)
Marcelle Arnold
Jean Brunel
Paule Launay
Marcel Rouzé
Norbert, butler
Marcel Herrand
René Sauvaire
Me Tirgen, lawyer
René Blancard
Adrien
André Versini
Guillaume
Guy Favières
Player
René Hell
Inspector
Roger Bontemps
Inspector General Leroux
Paul Delon
Teddy Bilis
Original Music Composer
Paul Misraki
Production Design
Robert Hubert
Production Manager
Claude Heymann
Director of Photography
René Gaveau
Producer
Aimé Frapin
Editor
Yvonne Martin
Sound
André Louis
Novel
Jean Giltène
Writer
Christian Stengel
Paul Wagner
Director