Characters played by Bela Lugosi
Dr. Paul Carruthers
Characters played by Suzanne Kaaren
Mary Heath
Characters played by Dave O'Brien
Johnny Layton
Characters played by Guy Usher
Henry Morton
Characters played by Yolande Donlan
Maxine
Characters played by Donald Kerr
'One-Shot' McGuire
Characters played by Edmund Mortimer
Martin Heath
Characters played by Gene O'Donnell
Don Morton
Characters played by Alan Baldwin
Tommy Heath
Characters played by John Ellis
Roy Heath
Characters played by Arthur Q. Bryan
Joe McGinty
Characters played by Hal Price
Chief Wilkins
Characters played by John Davidson
Prof. Raines
Characters played by Billy Griffith
Coroner
Characters played by Wally Rairden
Walter King