An old lighthouse keeper who lives with his daughter secretly keeps a prehistoric fish-man by feeding it scraps and fish. One day he misses the feeding and all hell breaks loose.
Unfortunately the movie The Monster of Piedras Blancas is not yet available on HBO Max.
| Costume & Make-Up | Jack Kevan | Makeup Artist |
| Editing | George A. Gittens | Editor |
| Camera | Philip H. Lathrop | Director of Photography |
| Production | Jack Kevan | Producer |
| Directing | Irvin Berwick | Director |
| Writing | H. Haile Chace | Screenplay |
| Directing | Joseph C. Cavalier | Assistant Director |
| Art | Ed Keyes | Property Master |
| Camera | Walter Woodworth | Grip |
| Sound | Joe Lapis | Sound |
| Sound | James V. Swartz | Sound |
| Lighting | Tom Ouellette | Lighting Technician |
| Directing | Luanna Sherman | Script Supervisor |
