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Richard Basehart as Dr. Leonard Chaney |
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Gloria Grahame as Katherine |
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Lance Henriksen as Dr. Dan Bryan |
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JoJo D'Amore as Georgio |
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Trish Stewart as Nancy Chaney |
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Al Ferrara as Al |
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Donna Andresen as Sylvia Porter |
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Marilyn Joi as Miss Mathews |
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Katherine Fitzpatrick as Elevator Victim |
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Katherine Stewart as The Hitchhiker |
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Vic Tayback as Detective Simon |
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Simmy Bow as Ambulance Doctor |
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Arthur Space as Wino |
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Del Negro as Black Intern |
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Libby Chase as Libby |
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Barry Chase as Delivery Boy |
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Sally Marr as Landlady |
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Sandy Champion as Doctor in Corridor |
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Patsy Sublime as Miss Dunn |
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Barbara Sloane as Woman Bystander |
| Directing | Michael Pataki | Director |
| Art | Patrick McFadden | Set Decoration |
| Production | Albert Band | Supervising Producer |
| Production | Richard Shore | Production Manager |
| Directing | Richard Band | Assistant Director |
| Production | Bobby Herbeck | Production Assistant |
| Directing | Monica Dunlop | Script Supervisor |
| Production | Kathryn Cunha | Production Secretary |
| Camera | James A. Dennett | Assistant Camera |
| Camera | Robert Hale | Second Assistant Camera |
| Lighting | Moshe Yakobovesky | Gaffer |
| Camera | Sam Firstenberg | Grip |
| Sound | John Hayes | Sound |
| Sound | Tony Vorno | Boom Operator |
| Costume & Make-Up | Thomas Hasson | Wardrobe Master |
| Camera | Stephen Vaughan | Still Photographer |
| Editing | Sandra Adair | Assistant Editor |
| Sound | Lee Osborne | Music Editor |
| Writing | Frank Ray Perilli | Writer |
| Production | Charles Band | Producer |
| Sound | Robert O. Ragland | Original Music Composer |
| Camera | Andrew Davis | Director of Photography |
| Editing | Harry Keramidas | Editor |
| Art | Roger Pancake | Art Direction |
| Costume & Make-Up | Stan Winston | Makeup Designer |
| Costume & Make-Up | Mike Bacarella | Makeup Artist |
| Costume & Make-Up | Tom Hoeber | Makeup Artist |
