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William Marshall as Bishop Garnet Williams |
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Terry Carter as Rev. Emmett Williams |
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Austin Stoker as Det. Cass Potter |
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Carol Speed as Abby Williams |
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Juanita Moore as Miranda 'Momma' Potter |
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Charles Kissinger as Dr. Hennings |
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Elliott Moffitt as Russell Lang |
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Nathan Cook as Tafa Hassan |
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Nancy Lee Owens as Mrs. Wiggins |
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William P. Bradford as Dr. Rogers |
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Joann Holcomb as Lois |
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Claude Fulkerson as Benny |
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Charles Broaddus as Joe (as Chuck Broadus) |
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Joan Ray as Sue |
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Mary Minor as Lolly |
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Nancy Lea Owen as Mrs. Wiggins |
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Bob Holt as The Demon (voice) |
| Production | William Girdler | Producer |
| Production | Samuel Z. Arkoff | Executive Producer |
| Production | David Sheldon | Producer |
| Production | Gordon Cornell Layne | Producer |
| Directing | William Girdler | Director |
| Directing | Sally Roddy | Script Supervisor |
| Writing | Gordon Cornell Layne | Screenplay |
| Writing | William Girdler | Story |
| Writing | Gordon Cornell Layne | Story |
| Camera | William L. Asman | Director of Photography |
| Editing | Bub Asman | Editor |
| Editing | Corky Ehlers | Editor |
| Art | J. Patrick Kelly III | Production Design |
| Sound | Robert O. Ragland | Original Music Composer |
