Robert Lamoureux as Robert Langlois, avocat

Gaby Morlay as Gabrielle Langlois, la mère

Fernand Ledoux as Fernand Langlois, le père, professeur

Nicole Courcel as Catherine Langlois, l'épouse de Robert

Louis de Funès as M. Calomel, voisin à l'étage au-dessus

Élina Labourdette as Marguerite, la fleuriste

Renée Passeur as La visiteuse snob

Madeleine Barbulée as Une collègue de Fernand

Claire Gérard as

Gabrielle Fontan as La directrice de Saint-Beuve, collège pour filles

Michel Etcheverry as L'explorateur

Marcel Pérès as L'entrepreneur

Bernard Musson as L'huissier de justice

Robert Rollis as Léon « Alibi », ami de Robert

Michel Lallier as Michel Langlois

François Lallier as François Langlois

Jean Tissier as Maître Petitot, avocat

Jany Vallières as L'infirmière distraite (uncredited)

Luc Andrieux as Le déménageur (uncredited)

Edmond Ardisson as L'employé du gaz (uncredited)

Christian Brocard as Un futur père (uncredited)

José Casa as Angelo, l'ouvrier italien (uncredited)

Claude Castaing as (uncredited)

Henri Coutet as Un homme qui amène le panneau de vente (uncredited)

Hubert de Lapparent as Le commissaire de la compétition de cycles (uncredited)

Mylène Demongeot as La fille qui ouvre la porte (uncredited)

Ariane Dufy as (uncredited)

Paul Faivre as Le curé (uncredited)

Pierre Ferval as Un passant (uncredited)

Émile Genevois as Un coureur cycliste (uncredited)

René Hell as Un homme de l'hôtel (uncredited)

Sylviane Humair as La fille de la visiteuse snob (uncredited)

Jean Hébey as Un passant (uncredited)

Léon Larive as Le concierge de Saint-Beuve, collège pour filles (uncredited)

Jean-Paul Le Chanois as Le client sourd (uncredited)

Palmyre Levasseur as Mme Calomel (uncredited)

Sophie Mallet as La concierge (uncredited)

Dominique Marcas as La cliente de la voyante (uncredited)

Jacques Marin as Le garagiste (uncredited)

Albert Michel as L'employé S.N.C.F. (uncredited)

Jacques Muller as Un invité parlant automobile (uncredited)

Michel Nastorg as Me Vandalle, de Cambrai (uncredited)

Claire Olivier as La patronne de la fleuriste (uncredited)

Laure Paillette as Une commère (uncredited)

Eugène Stuber as Un agent (uncredited)

Jean Sylvère as (uncredited)

Eugène Yvernès as (uncredited)