Erle C. Kenton Director Lon Chaney Jr. The Monster Actor Cedric Hardwicke Ludwig Frankenstein Actor Bela Lugosi Ygor Actor Ralph Bellamy Erik Actor Lionel Atwill Doctor Bohmer Actor Evelyn Ankers Elsa Frankenstein Actor Janet Ann Gallow Cloestine Actor Barton Yarborough Dr. Kettering Actor Doris Lloyd Martha Actor Leland Hodgson Chief Constable Actor Olaf Hytten Hussman Actor Holmes Herbert Magistrate Actor Dwight Frye Villager (uncredited) Actor Michael Mark Councillor (uncredited) Actor Harry Cording Frone (uncredited) Actor Charles S. Gould Assistant Director W. Scott Darling Screenwriter George Waggner Producer Hans J. Salter Original Music Elwood Bredell Cinematographer Milton R. Krasner Cinematographer Ted J. Kent Film Editing Jack Otterson Art Director Russell A. Gausman Set Decoration Vera West Costume Design