Der grauenvolle Mr. X

Vincent Price

Locke / Fortunato / Valdemar / Narrator

Peter Lorre

Montresor ("The Black Cat")

Basil Rathbone

Carmichael ("The Case of M. Valdemar")

Debra Paget

Helene ("The Case of M. Valdemar")

Maggie Pierce

Lenora ("Morella")

Joyce Jameson

Annabel ("The Black Cat")

Leona Gage

Morella ("Morella")

David Frankham

Dr. James ("The Case of M. Valdemar")

Lennie Weinrib

Policeman ("The Black Cat")

Wally Campo

Barman Wilkins ("The Black Cat")

Alan DeWitt

Chairman of Wine Society ("The Black Cat")

John Hackett

Policeman ("The Black Cat")

Edmund Cobb

Driver ("Morella")

Scott Brown

Servant ("The Case of M. Valdemar")

Benjie Bancroft

Wine Society Member ("The Black Cat") (uncredited)

Paul Bradley

Wine Society Member ("The Black Cat") (uncredited)