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