During the 18th century, the empress of Russia Catherine the Great sends her lover Count Alexei Orloff to kidnap her rival for the throne, the pretender Elizabeth, Princess Tarakanova, from Venice. However, Orloff ends up falling in love with the princess.
| Actor | Role |
|---|---|
 Richard GreeneCount Alexei Orloff | Count Alexei Orloff |
| VValentina CortesePrincess Tarakanova | Princess Tarakanova |
 Greta GyntCountess Loradona Campaniello | Countess Loradona Campaniello |
 Isa PolaEmpress Catherine | Empress Catherine |
| CCharles GoldnerGeneral Korsakoff | General Korsakoff |
 Hugh FrenchSargeant Sergei Nikolsky | Sargeant Sergei Nikolsky |
 Antonio CentaPrince Radziwiłł | Prince Radziwiłł |
 Guido NotariVaska | Vaska |
| CCippi ValliElizabeth's maid | Elizabeth's maid |
 William TubbsNot listed | Not listed |
 Giulio DonniniNot listed | Not listed |
 Dino GalvaniNot listed | Not listed |
| EEnzo Musumeci GrecoNot listed | Not listed |