Robert Vernay
Director
Maurice Dekobra
Screenplay
Maurice Dekobra
Novel
Solange Térac
Writer
Roger Hanin
Mirmont
Christiane Minazzoli
Eva Dolbry
Lucien Nat
Professor Wilkowski
René Dary
Head of the D.S.T.
Antonio Passalia
Serge Alerio
René Blancard
Raddel
Yves Barsacq
Laboratory assistant
Donald O'Brien
Dolbry
Madeleine Lambert
The aunt
Laurence Aubray
Denise Bataille
Henri Coutet
Robert Favart
Lucien Frégis
Clément Harari
Claude Jenner
Antoine Marin
Charles Millot
Jacqueline Rivière
Michel Salina
