Cast & crew
Nightmare Castle (1965)
Directed by Mario Caiano Written by Fabio De Agostini, Mario Caiano
Cast
| Barbara Steele | Muriel Arrowsmith / Jenny Arrowsmith |
| Paul Müller | Dr. Stephen Arrowsmith |
| Helga Liné | Solange |
| Giuseppe Addobbati | Jonathan, the Butler |
| Marino Masé | Dr. Dereck Joyce |
| Rik Battaglia | David |
Crew
| Renato Cinquini | Editor |
| Ennio Morricone | Original Music Composer |
| Enzo Barboni | Director of Photography |
| Carlo Caiano | Producer |
| Mario Caiano | Director |
| Fabio De Agostini | Story |
| Duilio Giustini | Makeup Artist |
| Ennio Morricone | Conductor |
| Mario Caiano | Story |
| Pietro Nofri | Supervising Producer |
| Pietro Nofri | Production Assistant |
| Carlo Caiano | Production Manager |
| Mario Giorsi | Costume Designer |
| Massimo Tavazzi | Set Decoration |
| Massimo Tavazzi | Production Designer |
| Fabio De Agostini | Screenplay |
| Mario Caiano | Dialogue |
| Fabio De Agostini | Dialogue |
| Angelo Sangermano | Assistant Director |
| Mario Mancini | Camera Operator |
| Bernardino Fronzetti | Sound Engineer |
| Mario Caiano | Screenplay |
| Priscilla Contardi | Continuity |
| Ermanno Serto | Still Photographer |