Basil Rathbone

Baron Wolf von Frankenstein

Boris Karloff

The Monster

Béla Lugosi

Ygor

Lugosi Béla

Lionel Atwill

Inspector Krogh

Josephine Hutchinson

Elsa von Frankenstein

Donnie Dunagan

Peter von Frankenstein

Emma Dunn

Amelia

Edgar Norton

Thomas Benson

Perry Ivins

Fritz

Lawrence Grant

Bürgermeister

Lionel Belmore

Emil Lang

Michael Mark

Ewald Neumüller

Caroline Frances Cooke

Frau Neumüller

Gustav von Seyffertitz

Burgher

Lorimer Johnston

Burgher

Tom Ricketts

Burgher

Ward Bond

Gendarme at Gate (uncredited)

Betty Chay

Undetermined Role (uncredited)

Harry Cording

Bearded Gendarme (uncredited)

Jack Curtis

Actor (uncredited)

Fred Farrell

Villager (uncredited)

Jack Harris

Extra (uncredited)

Russ Powell

Webber - Burgher (uncredited)

Clarence Wilson

Dr. Berger (uncredited)