Lucien Baroux
Curator of the Mathematics Museum
Suzy Prim
Madame Ménard
Suzanne Dehelly
Dora
Foun-Sen
Renée Ménard
Jean Tissier
Civil Status employee
Pierre Larquey
Crazy psychiatrist
Jean Brochard
Guide
Jean Périer
Old man
Jean Mercanton
Paul, young sportsman
René Génin
Tramp
Marguerite Deval
Madame widow Ménard
Marcelle Monthil
Friend of the Ménard widow
Gabrielle Fontan
Concierge
Maximilienne
Young lady Ménard
Julienne Paroli
Friend of the Ménard widow
Charles Lemontier
Head waiter
Louis Florencie
Commissioner
Georges Bever
Coffee boy
Jean Morel
President
Jacques Meyran
Old man's doctor
Max Dalban
Wizard
Édouard Delmont
Colonial
Marguerite Moreno
Novelist
Robert Le Vigan
Amédée Garbure
Alfred Baillou
Representative of the Ménard family (uncredited)
Marguerite de Morlaye
Nurse (uncredited)
Maurice Devienne
(uncredited)
Charles Granval
Millionaire centenarian (uncredited)
Albert Malbert
Representative of the Ménard family (uncredited)
Maurice Marceau
(uncredited)
Albert Morys
(uncredited)