Les gosses mènent l'enquête

François Patrice

Dominique Lekain

Constant Rémy

Deberny

Lise Topart

Mariette

Рене Женин

Belleu

Lucas Gridoux

Commissioner

René Blancard

Morgain

Pierre Labry

Fiellat

Léonce Corne

Professor

Claire Gérard

Madame Lieusaint

José Artur

Luxeuil

Henri Valbel

Monsieur Crauqual

Luce Fabiole

Godmother

Robert Moor

Professor

Max Dalban

Doctor

Charles Vissières

Samson

Marcel Loche

(uncredited)

Jean-François Martial

Regular in the circle (uncredited)

Jacques Sommet

Monitor

Georges Hubert

Lieusaint

François Loiselet

Student

Dino de Philippe

Roland Moreau

Student

Denis Gorman

Dany Bill

Maledieu (uncredited)