Directed by
| Don Barton | ||
| Arnold Stevens | ... | (uncredited) |
Writing Credits
| Ron Kivett | ... | (story) and |
| Lee O. Larew | ... | (story) |
| Don Barton | ... | (screenplay) |
| Arnold Stevens | ... | (uncredited) |
Cast (in credits order) verified as complete
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Marshall Grauer | ... | Dr. Kurt Leopold |
| Wade Popwell | ... | The Monster | |
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Paul Galloway | ... | Sheriff Lou Krantz |
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Gerald Cruse | ... | Marine Biologist Rex |
| Sanna Ringhaver | ... | INPIT Agent Martha Walsh | |
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Dave Dickerson | ... | INPIT Agent Walker Stevens |
| Rich Valliere | ... | Deputy Sheriff (as Archie Valliere) | |
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Nancy Lien | ... | Girl Camper |
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Russell Holcomb | ||
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Gloria Brady | ||
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Del Galloway | ||
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Hal Nearhoof | ||
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Jim Merrill | ... | Boy on porch |
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Elizabeth Barton | ... | Girl on porch |
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Bob Knowles | ||
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Carol Thompson | ||
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Jack Weatherford | ||
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Doug Thomas | ... | Reporter |
| Rest of cast listed alphabetically: | |||
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Frank Crowell | ... | (uncredited) |
Produced by
| Don Barton | ... | producer |
| Sol Fried | ... | producer (uncredited) |
| Robert M. Smith Jr. | ... | associate producer |
| Dick Stratton | ... | associate producer |
Music by
| Jamie DeFrates | ||
| Barry Hodgin | ||
Cinematography by
| Jack McGowan | ... | director of photography |
Editing by
| George Yarbrough | ||
Makeup Department
| Lee J. O'Donnell | ... | makeup artist (as Lee James O'Donnell) |
Production Management
| Paul Galloway | ... | unit manager |
Art Department
| Hal Henderson | ... | set designer |
| Roy Neering | ... | set designer |
Sound Department
| Karl Herrmann Jr. | ... | boom operator |
| George Yarbrough | ... | sound mixer / sound recordist |
Camera and Electrical Department
| Jim Clark | ... | second assistant camera |
| Nat Fain | ... | still photographer |
| Karl Herrmann Sr. | ... | key grip |
| John McGowan | ... | assistant camera |
| Neil Mengel | ... | photographer: second unit |
| Rich West | ... | electrician |
Costume and Wardrobe Department
| Martha Fillyaw | ... | monster costume |
| Ron Kivett | ... | monster costume |
| Les Lancaster | ... | monster costume |
Editorial Department
| John Orsulak | ... | negative cutter |
Music Department
| Jack Tamul | ... | composer: electronic music |
| Trevor Duncan | ... | composer: stock music (uncredited) |
Script and Continuity Department
| Sandra Marley | ... | script clerk (as Sandy Ulosevich) |
Additional Crew
| Ron Kivett | ... | technical director |
| Marilyn Womersley | ... | production assistant |
