Marcel André

as Le père de Françoise

as Monsieur Dubois, director of the O.P.I. agency

as Mr. Bardot, director of the college

as l'inspecteur Gosset

as M. Michaud

as Dusmesnil

as Sableuse

as Le médecin légiste

as Josias

as Investigating judge

as Le commissaire

as Doctor Charles Tannard

as Karski

as Inspector Paulot

as Georges

as The principal

as Le juge d'instruction (uncredited)

as Belle's Father

as Le docteur Lestrade

as Planquine

as Frivolity merchant (uncredited)

as Pongibaud

as Le directeur de la P.J.

as Camusot