A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves involved with a marine biology professor conducting secretive experiments, international spies trying to steal his secrets, a radioactive light on the sea bottom, and the malevolent thing which guards it.
Kent Taylor | Dr. Ted Stevens / Ted Baxter |
Cathy Downs | Lois King |
Michael Whalen | Prof. King |
Helene Stanton | Wanda |
Phillip Pine | George Thomas |
Rodney Bell | William S. 'Bill' Grant |
Vivi Janiss | Ethel Hall |
Michael Garth | Sheriff |
Pierce Lyden | Andy, the Janitor |
Norma Hanson | The Phantom |