Boris Karloff

Edmond Bateman

Bela Lugosi

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

Raine Bennett

Poe (uncredited)

Al Ferguson

The Crook (uncredited)

Nina Golden

Dancer (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)