Serge Reggiani
Joseph "Rouletabille"
Hélène Perdrière
Mathilde Stangerson
Lucien Nat
Robert Darzac
Michel Piccoli
Lebel
Gaston Modot
Mathieu
Marcel Herrand
Criminal Bellmayer alias Larsan
Loleh Bellon
Maid
Louis Bugette
Nurse from the hospital
Yvette Etiévant
Girl at the party at Rouletabille's
Jean Mercure
Investigating judge
Catherine Monot
Pierre Latour
Brigadier
Fernand René
Tramp
Mona Dol
Mrs. Baptiste
