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
William Beaudine
Diretor