Set in 18th-century Eastern Europe, the film concerns the star-crossed romance between a Polish military officer and a gorgeous Slavic princess. The princess' vengeful lover cuts a path of death and destruction throughout the land.
| Actor | Role |
|---|---|
 Jeanne CrainHelen | Helen |
 Pierre BriceJan Ketusky | Jan Ketusky |
 Elena ZareschiPrincess Kurzevich | Princess Kurzevich |
 Akim TamiroffMielski Zasloba | Mielski Zasloba |
 Raoul GrassilliBasilio | Basilio |
 John Drew BarrymoreBohun | Bohun |
 Gordon MitchellUlrich | Ulrich |
 Giacomo Rossi Stuart(as Giacomo Rossi-Stuart) | (as Giacomo Rossi-Stuart) |
 Milena VukotićNot listed | Not listed |
 Ornella VanoniNot listed | Not listed |
| BBruno NessiLongin | Longin |
 Eleonora VargasHorpina | Horpina |
 Gabriella AndreiniAnussia | Anussia |
 Nerio BernardiGeremia | Geremia |