Curse of the Swamp Creature (1966)

Deep in the rural swamps of Texas the mad Dr. Simond Trent is conducting experiments on the local swamp people in an attempt to discover the secret of evolution. When a party of oil ... See full summary »

Director:

 Larry Buchanan

Writer:

 Tony Huston (screenplay)

Stars:

 John Agar, Francine York, Jeff Alexander - via IMDB 

https://archive.org/details/Curse_of_the_Swamp_Creature