Commissioner Etienne Ledru
Anne-Marie Ledrut
Juliette Ledrut
Mrs. Terrasse
Director of the lab
Dr. Chauvin
Mr. Duquesne
Taxi driver
Inspector Martin
Philippe Ledrut
Janine, maid
Duquenne's son
Medical examiner
Principal
Neighbor
Mrs. Legrand, the mother-in-law
Commissioner Reboux
(uncredited)
Telephonist (uncredited)
"Fuit défendu" waiter (uncredited)
