Michel Simon as Albert et Alain Ménard-Lacoste

Louis de Funès as Emile, le valet de chambre

Marguerite Pierry as Madeleine Lacoste

François Guérin as Pierre Lacoste

Laurence Badie as Juliette Lacoste

Claude Gensac as Evelyne, la femme de chambre

Léon Walther as Maître Denisot, le notaire

Pauline Carton as la patronne de l'hôtel

Marthe Salbel as Marie, la cuisinière

Lana Marconi as une prostituée, "la comtesse"

Michel Nastorg as

André Brunot as

Georges Bever as

Max Dejean as

Marcel Pérès as

Jacqueline Gut as

Jacques Derives as

Marcel Mouloudji as

Marc Arian as

Louiguy as

Christine Vall as

Sacha Guitry as