On screen
Cast
25 credited performers
Jean Richard
Commissioner Etienne Ledru
Nicole Courcel
Anne-Marie Ledrut
Sophie Daumier
Juliette Ledrut
Junie Astor
Mrs. Terrasse
René Clermont
Director of the lab
Bernard Dhéran
Dr. Chauvin
Jean Galland
Mr. Duquesne
Jacques Hilling
Taxi driver
François Patrice
Inspector Martin
Jacques Perrin
Philippe Ledrut
Annick Tanguy
Janine, maid
Yves Arcanel
Character not listed
Jean-Pierre Cassel
Duquenne's son
Michel Nastorg
Medical examiner
Artwork unavailable
Raymond Pélissier
Principal
Artwork unavailable
Andrée Lelièvre
Character not listed
Yvon Sarray
Neighbor
Denise Grey
Mrs. Legrand, the mother-in-law
Noël Roquevert
Commissioner Reboux
René Berthier
(uncredited)
Lucien Camiret
(uncredited)
Artwork unavailable
Anne Lelièvre
(uncredited)
Dominique Marcas
Telephonist (uncredited)
Alain Nobis
"Fuit défendu" waiter (uncredited)
Georges Sellier
(uncredited)