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 as Miner

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 as Henchman

Merrill McCormick as Miner

Leo J. McMahon as Cowhand

Charles Murphy as Cowhand

Bill Nestell as Mine Guard

Hugh Prosser as Mine Boss

Dan White as Henchman

Henry Wills as Henchman