Josette, the daughter of a hotel-casino owner on the French Riviera is wooed by Pradier, a young gambler she (and everyone else) mistakes for the Prince of Austravia. On the other hand another young man starts courting her and she does not feel insensitive to his advances. What she does not know is that Monsieur Lefèvre, whom she feels so much to her liking, is actually the real prince of Austravia. When the Austravian revolution dethrones the prince, the young man has only one citadel left to conquer: Josette's heart.
| Actor | Role |
|---|---|
 Lucien BarouxHasdrubal, head of security | Hasdrubal, head of security |
 Yves FuretPradier | Pradier |
 Jacqueline PierreuxLucienne | Lucienne |
 André AlermeMonsieur Max | Monsieur Max |
 Pierre CressoyPrince of Austravia, who pretends to be Mr. Lefèvre | Prince of Austravia, who pretends to be Mr. Lefèvre |
| DDenise CardiJosette | Josette |
 Meg LemonnierMadame Dubars | Madame Dubars |
| RRoméo CarlèsMonsieur Epars | Monsieur Epars |
 Lucien CallamandColonel | Colonel |
 Alexandre ArnaudyConcierge | Concierge |
| LLuce ClamentMadame Epars | Madame Epars |
| EEliane Saint-JeanNot listed | Not listed |
| SSuzie JaspardNot listed | Not listed |
| SSylvie FévrierNot listed | Not listed |
 Simone ParisNot listed | Not listed |