The spirit of a vengeful female vampire is released from her grave and possesses a wealthy young woman of nobility, who preys on other women in her village.
| Actor | Role |
|---|---|
 Annette StroybergCarmilla | Carmilla |
 Mel FerrerLeopoldo De Karnstein | Leopoldo De Karnstein |
 Elsa MartinelliGeorgia Monteverdi | Georgia Monteverdi |
 Alberto BonucciCarlo Ruggieri | Carlo Ruggieri |
 René-Jean ChauffardDr. Verari | Dr. Verari |
 Gabriella FarinonLisa | Lisa |
 Serge MarquandGiuseppe | Giuseppe |
 Edith PetersThe Cook | The Cook |
| NNathalie LafaurieMarie | Marie |
| CCarmilla StroybergMartha | Martha |
 Marc AllégretJudge Monteverdi | Judge Monteverdi |
| RRenato SpezialiGuido Naldi (uncredited) | Guido Naldi (uncredited) |
 Giovanni Di BenedettoPolice Marshal (uncredited) | Police Marshal (uncredited) |
 Roger VadimPassenger in the Plane (uncredited) | Passenger in the Plane (uncredited) |