The laboratory equipment that was used in the film was provided by Ken Strickfaden, who originally used the same equipment in both Frankenstein (1931) and Bride of Frankenstein (1935), as well as years later in Young Frankenstein (1974). This is the first Frankenstein film to feature the equipment in the story in several years and the first of the few times that it was filmed in color.
Released as the bottom half of a double feature with Billy the Kid Versus Dracula (1966), which was also directed by William Beaudine.
This is the first Frankenstein film ever made in which the name "Igor" is spelled with an "I". Previously in Son of Frankenstein (1939) and The Ghost of Frankenstein (1942), the character's name was spelled "Ygor", with a "Y".
Shot in eight days.
Rosa Turich and Filipe Turich not only portrayed a husband and wife in this film, but they were also husband and wife in real life.