Bela Lugosi

Dr. Paul Carruthers

Suzanne Kaaren

Mary Heath

Dave O'Brien

Johnny Layton

Guy Usher

Henry Morton

Yolande Donlan

Maxine

Donald Kerr

'One-Shot' McGuire

Gene O'Donnell

Don Morton

Arthur Q. Bryan

Joe McGinty

Hal Price

Chief Wilkins

John Davidson

Prof. Percival Garland Raines