The film stars Whit Bissell, Phyllis Coates, Robert Burton, Gary Conway and George Lynn.

Professor Frankenstein, a guest lecturer from England, talks Dr. Karlton into becoming an unwilling accomplice in his secret plan to actually assemble a human being from the parts of different cadavers.

Professor Frankenstein tells Dr. Karlton of his plans to dismember his creation and ship him in various boxes to England and then return there to put him together again.

I Was a Teenage Werewolf had been a big success for AIP and a Texas exhibitor requested two new horror movies from the studio if they could be ready by Thanksgiving.

American International Pictures commissioned Herman Cohen to make I Was a Teenage Frankenstein and Blood of Dracula.

Cohen says that the alligator they hired for the movie had been used to dispose of the bodies of the victims of serial killer Joe Ball from a small town outside San Antonio.

[3]In 2009, film historian and critic Leonard Maltin dismissed I Was a Teenage Frankenstein as "campy junk...Doesn't live up to that title, worth catching only for Bissell's immortal line, 'Answer me!

As of 2015, all rights to the motion picture I Was a Teenage Frankenstein and its derivatives were the property of Susan Hart, the widow of producer James H.