 | Belinda Lee als Valeria Messalina |
 | Spiros Focás als Lucius Maximus |
 | Giancarlo Sbragia als Aulo Celso |
 | Carlo Giustini als Lucius Geta |
| Arturo Dominici als Caius Silius |
 | Ida Galli als Silvia |
 | Giulio Donnini als Narciso |
 | Marcello Giorda als Claudio |
 | Mino Doro als Sulpicio |
 | Annie Gorassini als cortigiana |
 | Aroldo Tieri als Pirgo Pollinice |
 | Giuliano Gemma als Marcello |
 | Lia Angeleri als Vipidia |
 | Vittorio Congia als Ortotrago |
| Spartaco Nale als Vibuleno |
| Nando Angelini als Glauco |
 | Paola Pitagora als ancella torturata |
 | Mimmo Poli |
| Nino Orsini |
 | Bruno Scipioni |
 | Benito Stefanelli |
 | Calisto Calisti |
 | Bruna Cealti |
| Paola Di Mario |
 | Alberto Plebani |
| Gilberto Mazzi |
 | Roberto Caporali |
| Antonio Corevi |
| Alfio Caltabiano |
| Vittorio Cottafavi | Director |
| Emo Bistolfi | Producer |
| Ennio De Concini | Story |
| Ennio De Concini | Screenplay |
| Mario Guerra | Story |
| Mario Guerra | Screenplay |
| Carlo Romano | Story |
| Carlo Romano | Screenplay |
| Duccio Tessari | Story |
| Duccio Tessari | Screenplay |
| Piero Mecacci | Makeup Artist |
| Argentina Ferri | Hairstylist |
| Antonio Visone | Assistant Production Design |
| Enzo Constantini | Set Decoration |
| Pasqualino De Santis | Camera Operator |
| Divo Cavicchioli | Still Photographer |
| Giorgio Ubaldi | Master at Arms |
| Pierantonio Mecacci | Assistant Makeup Artist |
| Enrico Magretti | Unit Manager |
| Alessandro Gori | Production Secretary |
| Franco Pollini | Production Secretary |
| Luigi Puri | Sound |
| Manlio Urbani | Boom Operator |
| Duccio Tessari | First Assistant Director |
| Franca Franco | Second Assistant Director |
| Marion Mertes | Script Supervisor |
| Mario Cimini | Assistant Camera |
| Otello Spila | Assistant Camera |
| Andreina Casini | Assistant Editor |
| Eros Bacciucchi | Special Effects |
| Dina Di Bari | Costume Design |
| Franco Lolli | Production Design |
| Luciano Cavalieri | Editor |
| Angelo Francesco Lavagnino | Original Music Composer |
| Carlo Savina | Conductor |
| Marco Scarpelli | Director of Photography |
| Renato Tonini | Production Manager |
