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Christmas Robbins as Laval Blessing |
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Val Mayerik as Damian Kaluta |
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Gunnar Hansen as Professor Peckinpah |
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Tom Hutton as Detective Tom Frazetta |
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David J. Howard as Charles Wrightson / The Demon |
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Sonny Bell as Officer Lester Gould |
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Linda Conrad as Elaine Ormsby |
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Phil Forman as Alex Redondo |
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Carol Lasowski as Sally Jones |
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Ron Hiveley as Paul Foster |
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Susan Bullen as Susan Ackerman |
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Jan Porter as Jane Corben |
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Michael McGivern as Garrett Adams |
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Kathy Stewart as Janis Romero |
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Kyra Nash as Pamela Kirby |
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The Spirit as The Spirit |
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Priscilla Southwell as Mrs. Frazetta |
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Kevin Baetz as Pete |
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Steve Lincoln as Arnie |
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Richard Clark as Ambulance Driver 1 |
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William Rasmussen as Ambulance Driver 2 |
| Directing | Jerry Younkins | Director |
| Directing | Donald G. Jackson | Director |
| Writing | Jerry Younkins | Writer |
| Writing | Donald G. Jackson | Writer |
| Production | Donald G. Jackson | Producer |
| Production | Jerry Younkins | Producer |
| Camera | Jeff Kreines | Director of Photography |
| Production | Bob Russell | Executive Producer |
| Production | Jean Morris | Associate Producer |
| Production | Les Morris | Associate Producer |
| Crew | Donald G. Jackson | Cinematography |
| Camera | Bryan Greenberg | Assistant Camera |
| Sound | Dennis Skotak | Sound Recordist |
| Costume & Make-Up | Robert Skotak | Makeup Artist |
| Crew | Robert Skotak | Special Effects |
| Camera | Bryan Greenberg | Additional Photography |
| Camera | Robert Skotak | Additional Photography |
| Camera | Dennis Skotak | Additional Photography |
| Art | Bob Scott | Art Direction |
| Art | Charles Durham | Props |
| Costume & Make-Up | Susan Bullen | Costumer |
| Editing | Donald G. Jackson | Editor |
| Editing | Robert Skotak | Editor |
| Editing | Dennis Skotak | Editor |
| Editing | Bryan Greenberg | Editor |
| Editing | Jerry Younkins | Editor |
| Production | William Baetz | Production Manager |
| Production | Ray Poll | Production Assistant |
| Production | Gene Schmidt | Production Assistant |
| Production | Elaine Edford | Production Assistant |
| Crew | Roger T Pratt | Stunt Coordinator |
| Sound | Don Glitz | Music |
| Sound | Jerry Skolasinski | Music |
| Crew | Messenger | Additional Music |
| Crew | Victor Duncan | Additional Music |
| Crew | Jack A. Frost | Additional Music |
| Crew | Pampa Recording Studio | Additional Music |
| Sound | Sound Shop | Sound |
| Crew | EUE Screen Gems | Title Graphics |