Director/a
Bertram Bracken
DIRECTOR/A
Reparto (por orden de créditos)
Clifford Grey
Harry Larrabee
Margaret Landis
Carolyn Vaughn
Winifred Greenwood
Madame Batonyi
Frank Brownlee
Batonyi, aka 'The Wolf'
William Ehfe
Dr. Stettina
Charles Blaisdell
Dr. Seward Wendell
Tom Morgan
Hallboy