Cedric Hardwicke (49)

Dr. Ludwig Frankenstein / Dr. Henry Frankenstein (ghostly image)

Ralph Bellamy (37)

Erik Ernst

Lionel Atwill (57)

Dr. Bohmer

Bela Lugosi (59)

Ygor

Evelyn Ankers (23)

Elsa Frankenstein

Lon Chaney Jr. (36)

The Frankenstein Monster

Janet Ann Gallow

Cloestine Hussman

Barton Yarborough (41)

Dr. Kettering

Doris Lloyd (50)

Martha the Housekeeper

Leyland Hodgson (49)

Chief Constable

Olaf Hytten (54)

Adolph Hussman

Holmes Herbert (59)

Magistrate

Richard Alexander (39)

Villager at Council Meeting (uncredited)

Lionel Belmore (74)

Councilman (uncredited)

Chet Brandenburg (44)

Villager (uncredited)

Colin Clive (42)

Dr. Henry Frankenstein (flashback) (uncredited)

Harry Cording (50)

Mob Leader (uncredited)

George Eldredge (43)

Constable (uncredited)

Dwight Frye (43)

Villager at Meeting / Grave Robber (flashback) (uncredited)

Lawrence Grant (71)

Mayor (uncredited)

Otto Hoffman (62)

Villager (uncredited)

Brandon Hurst (75)

Hans, Villager at Council Meeting (uncredited)

Michael Mark (55)

Councilman (uncredited)

Jimmy Phillips (40)

Boy Playing Indian (uncredited)

William Smith (8)

Boy (uncredited)

Ernie Stanton (51)

Constable (uncredited)

Julius Tannen (59)

Sektal (uncredited)

Harry Tenbrook (54)

Villager at Hearing (uncredited)

Glen Walters (40)

Mother of Hungry Children (uncredited)

Janet Warren

Goose-herd (uncredited)