I Was A Teenage Frankenstein (1957)

Starring Whit Bissell, Phyllis Coates, Robert Burton, Gary Conway, George Lynn
Directed by Herbert L. Strock
(actor & director credits courtesy IMDB.com)

A scientist and descendant of the original Frankenstein visits America where he too tries to create life from a stitched-together corpse, but this time assembled from the bodies of young people.

In writer/producer Herman Cohen's immediate followup to I Was A Teenage Werewolf, Whit Bissell again plays the villain, and this time the leading man, as the film's monster is more of a supporting character this time around.  Although his character is supposed to be from England, Bissell has no trace of an accent, making one wonder if he was cast as a last minute addition after the success of the previous picture.  Conway doesn't make the same impact as the monster that Michael Landon did in the previous film, but he's serviceable in a grotesque makeup, and Bissell's professionalism and stern conviction in his role is a welcome second helping of what succeeded in Teenage Werewolf.