Director/a
Colbert Clark
DIRECTOR/A
David Howard
Reparto (por orden de créditos)
Bob Steele
Fred Cromwell
Guinn 'Big Boy' Williams
Bill 'Jellybean' Cook
Lucile Browne
Dorothy Gray
Jack Mulhall
Henry 'Hank' Davis
Purnell Pratt
Lafe Johnson
Robert Frazer
Dr. Flint
J. Carrol Naish
Collins
Bob Kortman
Bracken
Lafe McKee
Stephen Gray
Edward Hearn
Sheriff [Chs. 2-3, 12]
Kernan Cripps
Tom - Dam Foreman
Edward Peil Sr.
Andrew Martin
Jack Mower
Carter - Henchman
Jack Perrin
Roberts - Mystery Flyer
Horace B. Carpenter
Express Agent [Ch. 3](uncredited)
Edward Cecil
Mine Engineer [Ch. 1, 7](uncredited)
Jack Cheatham
Henchman [Ch. 7](uncredited)
Richard Cramer
Mine Lookout(uncredited)
Dick Dickinson
Worker(uncredited)
Frank Ellis
Henchman at Periscope(uncredited)
Jack Evans
Dam Worker(uncredited)
Raoul Freeman
Mystery Flyer [Ch. 7](uncredited)
Barney Furey
Henchman(uncredited)
Pat Harmon
Jones - Mystery Flyer(uncredited)
Leonard Kibrick
Boy with Bag of Jellybeans [Ch. 1](uncredited)
George Magrill
Lew Meehan
Peterson - Henchman(uncredited)
Bob Roper
Frank - Worker(uncredited)
Hal Taliaferro
Mystery Flyer [Chs. 5-6, 10](uncredited)
Al Taylor
Wes Warner
Lloyd Whitlock
Mitchell - Mystery Flyer #1(uncredited)