Mr. Peek-a-Boo

Bourvil

Léon Dutilleul

Joan Greenwood

Susan

Gérard Oury

Maurice

Henri Crémieux

Mr. Lécuyer

Roger Tréville

Félix Burdin

Jacques Erwin

Gaston

Frédéric O'Brady

The Medical Specialist

René Worms

An Employee at the Ministry

Nina Myral

Mrs. Eloise

André Dalibert

Nicole Riche

The Lady of the Second

Germaine Reuver

Mrs. Ménard, the Concierge