Directed by
| Michael Reeves | ... | (as Mike Reeves) |
Writing Credits (in alphabetical order)
| Charles B. Griffith | ... | (screenplay) (uncredited) |
| F. Amos Powell | ... | (screenplay) (uncredited) |
| Michael Reeves | ... | (as Michael Byron) |
| Mel Welles | ... | (screenplay) (uncredited) |
Cast (in credits order) verified as complete
| Barbara Steele | ... | Veronica | |
| John Karlsen | ... | Count Von Helsing | |
| Ian Ogilvy | ... | Philip | |
| Mel Welles | ... | Ladislav Groper | |
 |
Joe 'Flash' Riley | ... | Vardella the She-Beast (as Jay Riley) |
| Richard Watson | ... | Comrade Police Lieutenant | |
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Edward B. Randolph | ... | Man on Scooter / Man Wearing Red Sweater (as Ed Randolph) |
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Peter Grippe | ... | Policeman |
| Lucretia Love | ... | Groper's Niece (as Lucrezia Love) | |
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Ennio Antonelli | ... | Truck Driver (as Tony Antonelli) |
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Kevin Welles | ... | Boy in Flashback |
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Woody Welles | ... | Boy at Cockfight |
| Rest of cast listed alphabetically: | |||
| Charles B. Griffith | ... | Policeman (uncredited) | |
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F. Amos Powell | ... | Man in Raincoat / Policeman (uncredited) |
Produced by
| Patrick Curtis | ... | associate producer (uncredited) |
| Paul Maslansky | ... | producer (as Paul M. Maslansky) |
| Michael Reeves | ... | co-producer (uncredited) |
Music by
| Ralph Ferraro | ... | (US version) |
| Paul Ferris | ||
Cinematography by
| Gioacchino Gengarelli | ... | director of photography (as G. Gengarelli) |
Editing by
| Nira Omri | ||
Set Decoration by
| Annabelle Webb | ||
Makeup Department
| David Pollack | ... | makeup artist |
Second Unit Director or Assistant Director
| Charles B. Griffith | ... | second unit director (as Charles Griffith) |
| Mel Welles | ... | second unit director (uncredited) |
Art Department
| Pete White | ... | property master |
Sound Department
| Nick Alexander | ... | sound editor |
| Lars Bloch | ... | sound |
Camera and Electrical Department
| Mario Cimino | ... | camera operator |
Music Department
| Ralph Ferraro | ... | conductor (US version) |
Script and Continuity Department
| Claudine Mallet | ... | script girl |
