Générique complet
The Unholy Night
Ernest Torrence
Dr. Ballou
Roland Young
Lord Montague
Dorothy Sebastian
Lady Efra
Natalie Moorhead
Lady Vi
Sydney Jarvis
The Butler
Polly Moran
Polly, Maid
George Cooper
Frey, Lord Montague's Orderly
Sôjin Kamiyama
The Mystic
Claude Fleming
Sir James Rumsey
Clarence Geldart
Inspector Lewis
John Miljan
Major Mallory
Richard Tucker
Colonel Davidson
John Loder
Captain Dorchester
Philip Strange
Lieutenant Williams
John Roche
Lieutenant Savor
Lionel Belmore
Major Endicott
GB
Gerald Barry
Captain Bradley
Richard Travers
Major McDougal
Ellinor Vanderveer
Guest at First Seance
Boris Karloff
Abdul Mohammed Bey - the Hindu Lawyer (uncredited)
