Dédé de Montmartre, former king of the accordion, has become a bad boy who lives off drug trafficking and prostitution. He sets his sights on a young girl, fresh and naive, Odette, saleswoman at Galeries Lafayette. But he is touched by the charm of this midinette.
| Actor | Role |
|---|---|
 Albert PréjeanDédé-de-Montmartre | Dédé-de-Montmartre |
 Line Noro'La grande Marcelle' | 'La grande Marcelle' |
 Annie VernayOdette 'Trotinette' Martin | Odette 'Trotinette' Martin |
 Robert Le ViganFernand the American | Fernand the American |
 Raymond Aimos'Joe la Combine' | 'Joe la Combine' |
 André NicolleLe patron du bar | Le patron du bar |
| GGermaine CharleyMadame Léon | Madame Léon |
| MMady MadeGeorgette | Georgette |
 Gaston MaugerPolice commission | Police commission |
 Georges PallyBob | Bob |
| PPoussardRiquet | Riquet |
| MMadeleine SuffelJuliette | Juliette |
 Paul VilléMonsieur Léon | Monsieur Léon |
 Marcelle BarryBoss of the bar (uncredited) | Boss of the bar (uncredited) |
 Albert Broquin(uncredited) | (uncredited) |
| IIrène Jeanning(uncredited) | (uncredited) |