"When three Texas Rangers try to investigate kidnapped Mexicans being used as forced labor in the mines of Silver Bullet, they are framed for murder by the town's corrupt sheriff."
William Boyd
as Hopalong Cassidy
Andy Clyde
as California Carlson
Jay Kirby
as Johnny Travers
Russell Simpson
as Orestes Krebs
Claudia Drake
as Inez LaBarca
George Reeves
as Don Enrique Perez
Robert Mitchum
as Quinn
Duncan Renaldo
as Commandante
Pierce Lyden
as Loren
Cliff Parkinson
as Barton
Victor Adamson
as Miner
Roy Bucko
as Wagon Driver
John Cason
Bert Dillard
as Henchman
Joe Dominguez
as Mexican
Art Felix
as Turner
Herman Hack
as Henchman / Miner
Earle Hodgins
as Cook
Bob Kortman
as Mine Guard
Johnny Luther
Merrill McCormick
Leo J. McMahon
as Cowhand
Charles Murphy
Bill Nestell
Hugh Prosser
as Mine Boss
Dan White
Henry Wills
Lesley Selander
Director
Ralph Berger
Art Direction
Sherman A. Rose
Editor
Earl Moser
Wardrobe Designer
Russell Harlan
Cinematography
Harry Sherman
Producer
Emile Kuri
Set Decoration
Michael Wilson
Screenplay
Clarence E. Mulford
Characters