Vanina Vanini, a bored, spoiled Roman countess, falls in love with a dedicated young patriot who is in Rome to assassinate a traitor to the brotherhood of the Carboneria.
| Actor | Role |
|---|---|
 Sandra MiloVanina Vanini | Vanina Vanini |
 Laurent TerzieffPietro Missirilli | Pietro Missirilli |
 Martine CarolCountess Vitelleschi | Countess Vitelleschi |
| IIsabelle CoreyClelia | Clelia |
 Nerio BernardiCardinal Savelli | Cardinal Savelli |
 Claudio BiavaKidnapper of the Young Priest | Kidnapper of the Young Priest |
 Leonardo BottaYoung Confessor | Young Confessor |
 Olimpia CavalliInn's Waitress | Inn's Waitress |
 Nando CiceroSaverio Pontini | Saverio Pontini |
 Carlo GazzabiniCiovanni | Ciovanni |
 Enrico GloriMonsignor Benini | Monsignor Benini |
 Jean GruaultCastrato | Castrato |
 Evar MaranCarbonaro in the Tavern | Carbonaro in the Tavern |
 Antonio PierfedericiLivio Savelli | Livio Savelli |
 Leonardo SeveriniPriest on the Stagecoach | Priest on the Stagecoach |
 Carlo TamberlaniCardinal Rivarola | Cardinal Rivarola |
 Paolo StoppaAsdrubale Vanini | Asdrubale Vanini |
 Attilio DottesioScipione (uncredited) | Scipione (uncredited) |
 Terzo MonachesiAristocrat (uncredited) | Aristocrat (uncredited) |
 Mimmo PoliArab Merchant (uncredited) | Arab Merchant (uncredited) |