| Grant Williams | ... | Bob | |
| Kent Taylor | ... | Dr. Trenton | |
| John Bloom | ... | Gor | |
| Regina Carrol | ... | Tracy | |
| Vicki Volante | ... | Katherine | |
| Angelo Rossitto | ... | Dorro | |
| Reed Hadley | ... | Amir | |
| Zandor Vorkov | ... | Mohammed | |
| Richard Smedley | ... | Angel | |
| Gus Peters | ... | Charlie | |
| Margo Hope | ... | Pale Girl | |
| Bruce Kimball | ... | Jim | |
| Irv Saunders | ... | Victim (as Ervin Saunders) | |
| rest of cast listed alphabetically: | |||
| Alex Elliot | ... | Burglar (uncredited) | |
| Sean Graver | ... | Young Boy (uncredited) | |
Directed by | |||
| Al Adamson | |||
Writing credits | ||
| Samuel M. Sherman | (story) | |
| Joe Van Rodgers | (screenplay) | |
Produced by | |||
| Al Adamson | .... | producer | |
| Kane W. Lynn | .... | executive producer | |
| Samuel M. Sherman | .... | producer | |
| J.P. Spohn | .... | associate producer | |
Cinematography by | |||
| Louis Horvath | (director of photography) | ||
Film Editing by | |||
| J.P. Spohn | |||
Set Decoration by | |||
| Mike McCloskey | (as Mike McClosky) | ||
Makeup Department | |||
| Lee James | .... | makeup artist | |
Production Management | |||
| F.A. Miller | .... | production manager | |
Sound Department | |||
| Bob Dietz | .... | production sound (as Robert Dietz) | |
Camera and Electrical Department | |||
| Forest Carpenter | .... | key grip | |
| Hedy Dietz | .... | production stills | |
| Alex Elliot | .... | key grip | |
| Leo Rousseau | .... | camera assistant | |
| Stuart A. Spohn | .... | gaffer (as Stu Spohn) | |
Editorial Department | |||
| Irwin Cadden | .... | associate editor | |
Other crew | |||
| Bob Le Bar | .... | title designer | |
| Sandy Portelli | .... | script supervisor | |
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| House of Frankenstein | Bride of Re-Animator | Monstrosity | Maniac | Return of the Ape Man |
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| Full cast and crew | Company credits | External reviews |
| News articles | IMDb Horror section | IMDb USA section |
Another woefully bizarre Al Adamson mess, this one actually more coherent than many of his legendary paste-up jobs, but still wonderfully convoluted and ridiculous. The great John Bloom is asinine as a hulking monstrosity, and Kent Taylor is outstanding as a super-ham bad guy. A holy hallucination, this. I saw this with Adamson's extraordinary NURSE SHERRI at the drive-in. Oh, happy days!