Bela Lugosi
Dr. James Brewster
Louise Currie
Billie Mason
Wallace Ford
Jeff Carter
Henry Hall
Dr. George Randall
Minerva Urecal
Agatha Brewster
Emil Van Horn
The Ape
J. Farrell MacDonald
Captain O'Brien
Wheeler Oakman
Brady
Ralph Littlefield
Zippo
Jack Mulhall
Reporter
Charles Jordan
O'Toole
Charlie Hall
Barney
Dave Milton
Art Direction
Mack Stengler
Director of Photography
Arthur Hammond
Assistant Director
William Beaudine
Director
Carl Pierson
Editor
Sam Katzman
Producer
Jack Dietz
Glen Glenn
Sound
Barney A. Sarecky
Screenplay, Associate Producer
Karl Brown
Story
