Boris Karloff

Edmond Bateman

Lugosi Béla

Dr. Richard Vollin

Lester Matthews

Dr. Jerry Holden

Irene Ware

Jean Thatcher

Samuel S. Hinds

Judge Thatcher

Spencer Charters

Col. Bertram Grant

Inez Courtney

Mary Burns

Ian Wolfe

Geoffrey 'Pinky' Burns

Maidel Turner

Mrs. Grant

Al Ferguson

The Crook (uncredited)

Jonathan Hale

Bedside Dr. at Jerry's Right (uncredited)

Arthur Hoyt

Chapman - Buyer of Poe Memorabilia (uncredited)

Walter Miller

Bedside Dr. at Judge's Right (uncredited)

Bud Osborne

Policeman (uncredited)

Anne Darling

Autograph Hound