Jean-Paul Belmondo

Sergeant Pierre Augagneur

Michel Constantin

Adjutant Edouard Mahuzard

Jacques Villeret

Brigadier Béral

Michel Creton

Legionnaire Boissier

Marie Laforêt

Hélène Laroche-Fréon

François Perrot

François Laroche-Fréon, director of the bank

Gérard Buhr

Supply camp officer

Matthias Habich

Karl Brenner

Maurice Auzel

Soldier Borzik

Pierre Semmler

Captain Ulrich Dieterle

Caroline Silhol

Mrs. Chanterelle

Michel Beaune

French general (uncredited)

Michel Berreur

Legionnaire (uncredited)

Daniel Breton

Legionnaire (uncredited)

Claude Carliez

Legionnaire (uncredited)

Hans Verner

German Colonel (uncredited)

Henri Verneuil

Radio announcer's voice (uncredited)