 | Boris Karloff als Baron Victor Frederick Von Leppe |
 | Jack Nicholson als Lt. Andre Duvalier |
 | Sandra Knight als Helene / Ghost of Ilsa The Baroness Von Leppe |
 | Dick Miller als Stefan |
 | Dorothy Neumann als Katrina, Witch / Eric's Mother |
 | Jonathan Haze als Gustaf |
| Roger Corman | Director |
| Jack Hill | Screenplay |
| Leo Gordon | Screenplay |
| Marjorie Corso | Costume Design |
| John M. Nickolaus Jr. | Director of Photography |
| Harry Reif | Set Decoration |
| Roger Corman | Producer |
| Stuart O'Brien | Editor |
| Daniel Haller | Art Direction |
| Richard M. Rubin | Property Master |
| Paul Rapp | Assistant Director |
| Francis Ford Coppola | Associate Producer |
| Harvey Jacobson | Executive Producer |
| Monte Hellman | Location Manager |
| Ronald Stein | Original Music Composer |
| Donald C. Glouner | Visual Effects Producer |
| Les Baxter | Music |
| Ronald Stein | Conductor |
