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.
Directed by
Erle C. Kenton
William Smith
Boy (uncredited)
Bela Lugosi
Ygor
Ralph Bellamy
Erik Ernst
Lon Chaney Jr.
The Frankenstein Monster
Cedric Hardwicke
Dr. Ludwig Frankenstein / Dr. Henry Frankenstein (ghostly image)
Doris Lloyd
Martha the Housekeeper
Lionel Atwill
Dr. Bohmer
Harry Cording
Mob Leader (uncredited)
Holmes Herbert
Magistrate
Colin Clive
Dr. Henry Frankenstein (flashback) (uncredited)
Olaf Hytten
Adolph Hussman
Michael Mark
Councilman (uncredited)
Eddie Parker
Evelyn Ankers
Elsa Frankenstein
George Eldredge
Constable (uncredited)
Dwight Frye
Villager at Meeting / Grave Robber (flashback) (uncredited)