Frankenstein's unscrupulous colleague, Dr. Bohmer, plans to transplant Ygor's brain so he can rule the world using the monster's body, but the plan goes sour when he turns malevolent and goes on a rampage.
Cedric Hardwicke
Dr. Ludwig Frankenstein / Dr. Henry Frankenstein (ghostly image)
Ralph Bellamy
Erik Ernst
Lionel Atwill
Dr. Bohmer
Bela Lugosi
Ygor
Evelyn Ankers
Elsa Frankenstein
Lon Chaney Jr.
The Frankenstein Monster
Janet Ann Gallow
Cloestine Hussman
Barton Yarborough
Dr. Kettering
