Paris 1945! Everything's got to start over: everything's mad! Only the spivs are rich. When you're 16 with nothing but marbles in your pocket, you nick your schoolmate's savings and leave your home town for the bright lights of the city. Lost among the cute waifs and strays in Montmartre, Victor embarks on his city adventure with his sister's address as his only lifeline - a poor girl who survives by selling her charms and whose man nabs everything as soon as she gets it. The kids who play marbles on the wasteland keep their precious things to themselves but faced with Victor's fresh skin, the haggling starts and more than one of them gives in. He realises his worth and soon starts touting for business. He'll discover the artists of bohemian Montparnasse, as well as the riches of the smart districts.
| Actor | Role |
|---|---|
 Elyes ArdiniMarcel, le passager clandestin du train | Marcel, le passager clandestin du train |
 David BaumanTiti, le 1ère Poulbot | Titi, le 1ère Poulbot |
 Damien CarreyPierrot, le 2ème Poulbot | Pierrot, le 2ème Poulbot |
 Lucien LebrunVictor, le jeune provincial | Victor, le jeune provincial |
 Claude MartinetDavid, le directeur de la galerie d'art | David, le directeur de la galerie d'art |
 Lucas RizziRené, le copain de classe | René, le copain de classe |
 Adrian VassiliuRobert, le jules d'Emilie | Robert, le jules d'Emilie |
 Yadranko WasaAndré, l'artiste peintre | André, l'artiste peintre |
 Franz WeberLe modèle | Le modèle |
| AAntonio AndreaLe facteur | Le facteur |
| FFrimousseLe chien de Titi | Le chien de Titi |
| AAgnès MoranteEmilie, la sœur de Victor (Non-sexual role) | Emilie, la sœur de Victor (Non-sexual role) |
 Jean-Luc AdamMaurice, le grand frère de René | Maurice, le grand frère de René |
 Simon RaultLe jeune peintre | Le jeune peintre |