Bourvil character Léon Dutilleul
Joan Greenwood character Susan
Gérard Oury character Maurice
Henri Crémieux character Mr. Lécuyer
Roger Tréville character Félix Burdin
Jacques Erwin character Gaston
Frédéric O'Brady character The medical specialist
René Worms character An employee at the ministry
Nina Myral character Mrs. Eloise
Nicole Riche character The lady of the second
Germaine Reuver character Mrs. Ménard, the concierge
Jeanne Véniat character The South American
Georges Flateau character Mr Robert
Edmond Beauchamp character Arturo
Georges Lannes character The director of the 'prison de la Santé'
Marcelle Arnold character Germaine
Raymond Souplex character Jean-Paul
Nicolas Amato character The first agent (uncredited)
Georgette Anys character Maria (uncredited)
Alfred Arlais character (uncredited)
Maurice Biraud character A colleague of Léon (uncredited)
Gérard Buhr character (uncredited)
Marcel Charvey character The bartender (uncredited)
Dominique Davray character A model (uncredited)
Skip Farrell character Maurice (uncredited)
Charlie Fawcett character (uncredited)
Fignolita character The negress (uncredited)
Charles Jarrel character (uncredited)
Franck Maurice character The second agent (uncredited)
Marcel Meral character A colleague of Léon (uncredited)
Craddock C. Monroe character Elmer (uncredited)
Alain Raffael character (uncredited)
Nicole Rimbaud character (uncredited)
Titys character The prisoner (uncredited)
Pamela Wilde character A model (uncredited)
Payne Williams character Jean-Paul (uncredited)