Robert Lamoureux

Robert Langlois, law student

Fernand Ledoux

Fernand Langlois, father, professor

Gaby Morlay

Gabrielle Langlois, mother

Nicole Courcel

Catherine Liseray, young neighbor

Louis de Funès

Mr. Calomel, neighbor on the floor above

Gaston Modot

Street violinist

Madeleine Barbulée

Marie-Louise, first maid

Yolande Laffon

Madeleine Sautaupain, Mom's friend

Robert Rollis

Léon “Alibi”, friend of Robert

Sophie Sel

Student of Mr. Langlois

Dominique Davray

Neighborhood butcher

Françoise Hornez

Nicole

Judith Magre

Germaine, secretary

Alix Mahieux

Little Sylvie

Sophie Mallet

Maid

Jean-Paul Le Chanois