Bela Lugosi

Dr. Charles Kessler

Polly Ann Young

Virginia Kessler

John McGuire

Ralph Dickson / Paul Dickson

Clarence Muse

Evans the Butler

Betty Compson

Mrs. Kessler

Ernie Adams

Jules Mason, caretaker

Ottola Nesmith

Mrs. Mason

Jack Mulhall

Jim, a detective

Fred Aldrich

Guard at Ralph's Execution (uncredited)

Lloyd Ingraham

Psychiatrist (uncredited)

Dorothy Vernon

Kessler's Cook (uncredited)