Raymond Bussières
Jules
Annette Poivre
Nénette
Jean Ozenne
Specialist Doctor
Pierre Mondy
Accomplice
Jean Richard
Policeman
Gérard Oury
Narrator (voice)
Colette Darfeuil
Dédée
Alexandre Rignault
'Le gorille'
Robert Le Fort
Milou
Serge Nadaud
Principal curator Anselme Carillon
François Joux
The Doctor's assistant
André Chanu
The announcer of the Vél d'Hiv
Hennery
The organizer
Jean-Max
Pierrot
Albert Augier
A man hit by Jules at the fair (uncredited)
Paul Azaïs
The owner of the Mala-bar (uncredited)
Jean Droze
An onlooker at the fair / The soldier at the fair (uncredited)
Bernard Musson
A spectator at the Vél d'hiv (uncredited)
Raymond Pierson
An onlooker at the fair / A spectator (uncredited)
Émile Riandreys
A clerk from Heim (uncredited)
Sophie Sel
A customer on the terrace of 'Chez Albert' (uncredited)
Roger Saget
'Louis XIV'
Al Cabrol
O'Riol
Pierre Duncan
The butcher at the fair
Janine Villard
Matty Peters
Hortense, the cook
Édouard Francomme
A spectator at the entrance to the Vél d'hiv (uncredited)