Directed by
| William Grefé | ||
Writing Credits (in alphabetical order)
| William Kerwin | ... | (original screenplay) (as Al Dempsey) |
Cast (in credits order) verified as complete
| Joe Morrison | ... | Dr. John Hoyt | |
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Valerie Hawkins | ... | Karen Richardson |
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John Vella | ... | Egon |
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Jack Nagle | ... | Dr. Richardson |
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Sandy Lee Kane | ... | Louise, dark redhead |
| Deanna Lund | ... | Jessica, Honey Blond | |
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Lois Etelman | ... | Donna, light redhead |
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Blanche Devereaux | ... | Susan, frosted blond |
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Doug Hobart | ... | Egon as a monster |
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Judy Lee | ... | Ruth - sunbather on dock |
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Robert Stanton | ... | Sheriff Bob |
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Tony Gulliver | ... | First Boy |
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Ron Pinchbeck | ... | Second Boy |
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John Castle | ... | Third Boy |
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Pat Fowler | ||
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Barbara Paridon | ... | First Girl |
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Sheila Ryan | ||
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Kip Iris | ||
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Sandra Charest | ||
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Linda Lee Cravey | ||
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Brenda Gibson | ||
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Joann Jacobs | ||
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Virginia Sward | ||
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Vito Verdone | ||
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James Preddy | ... | (as Jim Preddy) |
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Barry Weiss | ||
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Ron Maret | ||
| Rest of cast listed alphabetically: | |||
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Sidney Lee | ... | Bit (uncredited) |
Produced by
| Joseph Fink | ... | producer (uncredited) |
| Richard S. Flink | ... | producer |
| Juan Hidalgo-Gato | ... | producer (uncredited) |
| Hank Rifkin | ... | associate producer |
Music by
| Al Jacobs | ||
| Lon E. Norman | ... | (as Lon Norman) |
Cinematography by
| Julio C. Chávez | ... | director of photography (as Julio Chavez) |
| Julio Roldan | ... | director of photography |
Editing by
| Julio C. Chávez | ... | (as Julio Chavez) |
Makeup Department
| Blanche de Jesus | ... | hair stylist |
| Harry Kerwin | ... | special makeup effects |
| Alma Malagon | ... | assistant hair stylist |
| Angela Perales | ... | makeup assistant |
| Nancy Roldan | ... | makeup artist |
Second Unit Director or Assistant Director
| Pepe Prieto | ... | assistant director |
Sound Department
| Claude Pounds | ... | sound recordist (as Claude Pound) |
| Mariano Sole | ... | sound engineer |
Stunts
| Doug Hobart | ... | stunts: jellyfish-man |
Camera and Electrical Department
| Santiago Perales | ... | head grip |
Costume and Wardrobe Department
| Gretchen Blank | ... | assistant wardrobe supervisor |
| Irene Velton | ... | wardrobe supervisor |
| Irene Yelton | ... | wardrobe supervisor |
Script and Continuity Department
| Doris Bernhardt | ... | script supervisor |
| Ben Lithman | ... | executive script consultant |
| Anita Metzger | ... | script coordinator |
Additional Crew
| Gary Holtz | ... | choreographer |
| Jack Milavic | ... | technical advisor |
| Thelma Sherr | ... | choreographer |
| Jamie Udell III | ... | assistant to associate producer |
