Jean-Claude Brialy
Role: Paul Martin
Michel Serrault
Role: Baudu, police inspector
Louis de Funès
Role: Norbert Charolais, General Director of 321
Sophie Daumier
Role: Solange, secretary and lover of Paul
Anne Tonietti
Role: Danielle Brossard, Paul's fiancée
Henri Virlogeux
Role: Mr. Brossard
Alfred Adam
Role: Hubert Beaumanoir, senior manager of 321
René Clermont
Role: Frépillon, senior manager of 321
Jacques Dynam
Role: Macheron, Paul's collaborator
Paul Gay
Role: TV announcer
Gilberte Géniat
Role: Madame Brossard
Jean Ozenne
Role: D'Aleyrac, senior manager of 321
Marc Arian
Role: Bailiff (uncredited)
André Badin
Role: Sandals representative (uncredited)
Charles Bayard
Role: Representative (uncredited)
Marcel Bernier
Role: Newspaper buyer (uncredited)
Robert Blome
Role: Agency collaborator (uncredited)
Florence Blot
Role: Manager of 'Paris Élite' (uncredited)
Philippe Castelli
Role: Doorman of 321 (uncredited)
Henri Coutet
Role: (uncredited)
Martine de Breteuil
Role: Guest (uncredited)
Alain Delon
Role: Lambert, new employee (uncredited)
Albert Dinan
Role: Man (uncredited)
Anne Doat
Role: (uncredited)
René Hell
Role: Mr. Martin (uncredited)
Guy Henry
Role: (uncredited)
Michel Modo
Role: Postman (uncredited)
Max Montavon
Role: Police officer (uncredited)
Jean Obé
Role: Parking employee (uncredited)
Jean-Claude Rémoleux
Role: Employee of 321 (uncredited)
Pierre Tchernia
Role: Legris, new senior executive of 321 (uncredited)
André Tomasi
Role: Inspector (uncredited)
Dominique Zardi
Role: (uncredited)
Jean-Pierre Zola
Role: Sandals representative (uncredited)
Gisèle Grandpré
Role: Mrs. Charolais (uncredited)