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)
Ralph Bellamy
Erik Ernst
Cedric Hardwicke
Dr. Ludwig Frankenstein / Dr. Henry Frankenstein (ghostly image)
Lon Chaney Jr.
The Frankenstein Monster
Bela Lugosi
Ygor
Lionel Atwill
Dr. Bohmer
Holmes Herbert
Magistrate
Doris Lloyd
Martha the Housekeeper
Olaf Hytten
Adolph Hussman
George Eldredge
Constable (uncredited)
Evelyn Ankers
Elsa Frankenstein
Chet Brandenburg
Villager (uncredited)
Richard Alexander
Villager at Council Meeting (uncredited)
Colin Clive
Dr. Henry Frankenstein (flashback) (uncredited)
Lawrence Grant
Mayor (uncredited)
Harry Tenbrook
Villager at Hearing (uncredited)
Dwight Frye
Villager at Meeting / Grave Robber (flashback) (uncredited)