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Vincent Price as Dr. Erasmus Craven |
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Peter Lorre as Dr. Adolphus Bedlo |
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Boris Karloff as Dr. Scarabus |
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Hazel Court as Lenore Craven |
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Olive Sturgess as Estelle Craven |
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Jack Nicholson as Rexford Bedlo |
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John Dierkes as Roderick Craven |
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Connie Wallace as Maid |
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William Baskin as Grimes |
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Aaron Saxon as Gort |
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Leo Gordon as Grimes (voice) (uncredited) |
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Dick Johnstone as Roderick Craven (uncredited) |
| Directing | Roger Corman | Director |
| Production | Roger Corman | Producer |
| Writing | Richard Matheson | Screenplay |
| Sound | Les Baxter | Original Music Composer |
| Camera | Floyd Crosby | Director of Photography |
| Editing | Ronald Sinclair | Editor |
| Art | Daniel Haller | Production Design |
| Art | Daniel Haller | Art Direction |
| Art | Harry Reif | Set Decoration |
| Production | Bartlett A. Carré | Production Supervisor |
| Production | James H. Nicholson | Executive Producer |
| Production | Samuel Z. Arkoff | Executive Producer |
| Sound | Al Simms | Music Coordinator |
| Production | Robert Agnew | Unit Manager |
| Directing | Jack Bohrer | Assistant Director |
| Sound | John Bury Jr. | Sound |
| Costume & Make-Up | Marjorie Corso | Costume Supervisor |
| Writing | ედგარ ალან პო | Short Story |
| Art | Ross Hahn | Construction Coordinator |
| Crew | Karl Brainard | Property Master |
| Sound | Gene Corso | Sound Editor |
| Crew | Pat Dinga | Special Effects |
| Sound | Eve Newman | Music Editor |
| Costume & Make-Up | Betty Pedretti | Hairstylist |
| Costume & Make-Up | Ted Coodley | Makeup Artist |
| Camera | Harry L. Underwood | Camera Operator |
