| Actor | Role |
|---|---|
 Frank LatimoreGuido di Belmonte | Guido di Belmonte |
 Constance SmithLucrezia Borgia | Lucrezia Borgia |
 Gisèle GalloisSimonetta di Rovena | Simonetta di Rovena |
 Alberto FarneseEnzo de Rovena | Enzo de Rovena |
 José JaspeFalconetto | Falconetto |
 Valeria FabriziNot listed | Not listed |
 Flora CaroselloNot listed | Not listed |
| TTommaso GizziNot listed | Not listed |
 Gino BuzzancaNot listed | Not listed |
 Andrea FantasiaNot listed | Not listed |
 Gildo BocciNot listed | Not listed |
 Nino MuscoNot listed | Not listed |
 Nino MarchesiniNot listed | Not listed |
| CCarla StroberNot listed | Not listed |
| GGiorgio CostantiniNot listed | Not listed |
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