演員
Frank LaRue
Inspector Cramer
Ted Mapes
Henchman Slim
Jack Perrin
Mine Guard
Norman Willis
Roy Benson
Alex Callam
James Benson
Richard Alexander
Henchman
Walter Sande
Jack Strong
Hal Price
O'Malley
Lloyd Ingraham
Managing Editor
Knox Manning
Narrator (voice)
Marin Sais
Hannah - Silk's Housekeeper
Cy Schindell
Henchman Red
Joyce Bryant
Patricia Benson
James C. Morton
Casey
Charles Quigley
Bob Lane
Forrest Taylor
Anton Benson
Charles King
Silk Langdon