Lucien BarouxCurator of the Mathematics Museum | Curator of the Mathematics Museum |
Suzy PrimMadame Ménard | Madame Ménard |
| SSuzanne DehellyDora | Dora |
| FFoun-SenRenée Ménard | Renée Ménard |
Jean TissierCivil Status employee | Civil Status employee |
Pierre LarqueyCrazy psychiatrist | Crazy psychiatrist |
Jean BrochardGuide | Guide |
Jean PérierOld man | Old man |
Jean MercantonPaul, young sportsman | Paul, young sportsman |
René GéninTramp | Tramp |
Marguerite DevalMadame widow Ménard | Madame widow Ménard |
Marcelle MonthilFriend of the Ménard widow | Friend of the Ménard widow |
Gabrielle FontanConcierge | Concierge |
MaximilienneYoung lady Ménard | Young lady Ménard |
Julienne ParoliFriend of the Ménard widow | Friend of the Ménard widow |
Charles LemontierHead waiter | Head waiter |
Louis FlorencieCommissioner | Commissioner |
Georges BeverCoffee boy | Coffee boy |
Jean MorelPresident | President |
| JJacques MeyranOld man's doctor | Old man's doctor |
Max DalbanWizard | Wizard |
Édouard DelmontColonial | Colonial |
Marguerite MorenoNovelist | Novelist |
Robert Le ViganAmédée Garbure | Amédée Garbure |
Alfred BaillouRepresentative of the Ménard family (uncredited) | Representative of the Ménard family (uncredited) |
Marguerite de MorlayeNurse (uncredited) | Nurse (uncredited) |
| MMaurice Devienne(uncredited) | (uncredited) |
Charles GranvalMillionaire centenarian (uncredited) | Millionaire centenarian (uncredited) |
Albert MalbertRepresentative of the Ménard family (uncredited) | Representative of the Ménard family (uncredited) |
Maurice Marceau(uncredited) | (uncredited) |