In the 19th century, a thug from the slums of Paris pretends to be a young aristocrat, but is unmasked by a demi-mondaine, from the same background as him.
| Actor | Role |
|---|---|
 Pierre BrasseurRocambole | Rocambole |
 Sophie DesmaretsBaccarat | Baccarat |
 Robert ArnouxVentura | Ventura |
 LoredanaCarmen de Montevecchio | Carmen de Montevecchio |
 Roland ArmontelLe comte Artoff | Le comte Artoff |
 Marcel DelaîtreLe docteur Blanche | Le docteur Blanche |
 Carla CandianiFanny | Fanny |
 Vittorio SanipoliArnaud, comte de Chamery | Arnaud, comte de Chamery |
 Ernesto SabbatiniLe marquis de Montevecchio | Le marquis de Montevecchio |
 Attilio DottesioNot listed | Not listed |
 Luisa RossiNot listed | Not listed |
| GGinette RoyNot listed | Not listed |
 Marcello GiordaNot listed | Not listed |
| GGualtiero IsnenghiNot listed | Not listed |
| SSilvia MantoNot listed | Not listed |
 Nino MarchesiniNot listed | Not listed |
 Evelina PaoliNot listed | Not listed |
 Massimo SeratoNot listed | Not listed |
| LLucien NatAndrea | Andrea |
| CCristina VeronesiNot listed | Not listed |