Jean-Claude Brialy

Paul Martin

Michel Serrault

Baudu, police inspector

Louis de Funès

Norbert Charolais, General Director of 321

Sophie Daumier

Solange, secretary and lover of Paul

Anne Tonietti

Danielle Brossard, Paul's fiancée

Henri Virlogeux

Mr. Brossard

Alfred Adam

Hubert Beaumanoir, senior manager of 321

René Clermont

Frépillon, senior manager of 321

Jacques Dynam

Macheron, Paul's collaborator

Paul Gay

TV announcer

Gilberte Géniat

Madame Brossard

Jean Ozenne

D'Aleyrac, senior manager of 321

Guy Bedos

Marc Arian

Bailiff (uncredited)

André Badin

Sandals representative (uncredited)

Charles Bayard

Representative (uncredited)

Marcel Bernier

Newspaper buyer (uncredited)

Robert Blome

Agency collaborator (uncredited)

Florence Blot

Manager of 'Paris Élite' (uncredited)

Philippe Castelli

Doorman of 321 (uncredited)

Henri Coutet

(uncredited)

Martine de Breteuil

Guest (uncredited)

Alain Delon

Lambert, new employee (uncredited)

Albert Dinan

Man (uncredited)

Anne Doat

(uncredited)

René Hell

Mr. Martin (uncredited)

Guy Henry

(uncredited)

Michel Modo

Postman (uncredited)

Max Montavon

Police officer (uncredited)

Jean Obé

Parking employee (uncredited)

Jean-Claude Rémoleux

Employee of 321 (uncredited)

Pierre Tchernia

Legris, new senior executive of 321 (uncredited)

André Tomasi

Inspector (uncredited)

Dominique Zardi

(uncredited)

Jean-Pierre Zola

Sandals representative (uncredited)

Gisèle Grandpré

Mrs. Charolais (uncredited)