 | Barbara Steele als Harriet Montebruno / Belinda |
 | Anthony Steffen als Roberto Merigi |
 | Claudio Gora als Conte Montebruno |
 | Mario Brega als Carlo Lionesi |
 | Marina Berti als Ilda, the Housekeeper |
 | Ursula Davis als Rita |
 | Vassili Karis als Dario, the Teacher |
 | Aldo Berti als Vittorio, the Gardener |
 | Betty Delon als Barbara Lionesi |
| Antonio Corevi als Guglielmo, the Majordomo |
| Antonio Acqua als Sergente, the Guardian |
| Livia Rossetti als Natalia |
 | Halina Zalewska als Luisa |
 | Giovanna Lenzi als Maria |
| Bruno Ariè als Man in Tavern (uncredited) |
| Camillo Mastrocinque | Director |
| Lilian Biancini | Producer |
| Gisa Radicchi Levi | Editor |
| Giuliano Simonetti | Associate Producer |
| Fausto De Lisio | Hairstylist |
| Vitantonio Ricci | Special Effects |
| Rino Carboni | Wigmaker |
| Giovanni Morosi | Makeup Artist |
| Guglielmo Simonetti | Assistant Production Coordinator |
| Ernesto Pompei | Shoe Design |
| Stefano Rolla | First Assistant Director |
| Giuseppe Ranieri | Assistant Art Director |
| Virgilio Ciarlo | Tailor |
| Marina Sacco | Assistant Editor |
| Francesco De Masi | Original Music Composer |
| Emilio Giannini | Camera Operator |
| Luigi Emmanuele | Story |
| Titi Efrade | Makeup Artist |
| Camillo Del Signore | Set Decoration |
| Luigi Anastasi | Production Secretary |
| Giuliano Simonetti | Production Manager |
| Fabrizio Gianni | Second Assistant Director |
| Giancarlo Malagoli | Hairstylist |
| Giorgio Desideri | Costume Designer |
| Fiorenzo Magli | Sound |
| Maria Luisa Rosen | Editorial Staff |
| Francesco De Masi | Conductor |
| Giuseppe Aquari | Director of Photography |
| Alberto Boccianti | Production Design |
| Giuseppe Mangione | Screenplay |
| Camillo Mastrocinque | Screenplay |
