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
Jean-Pierre Cassel
Duquenne's son
Michel Nastorg
Medical examiner
