Cast
William Boyd
William "Hopalong" Cassidy
Andy Clyde
Clarence "California" Carlson
Rand Brooks
Lucky Jenkins
Elaine Riley
Anne Larson
Joel Friedkin
Prof. Alonzo Larson
Kenneth MacDonald
Nat Bentley
Cliff Clark
Gerald Waite
Don Haggerty
Deal Marden, chief henchman
Richard Alexander
Miner-Henchman Buck
Zon Murray
Miner-Henchman Sam
George Eldredge
Mr. Radley
William Bailey
Mine Foreman
Crew
George Archainbaud
Director
Raoul Kraushaar
Music
Mack Stengler
Director of Photography
Lewis J. Rachmil
Producer
Jerome Pycha Jr.
Art Direction
Earl Sitar
Sound
George Sawley
Set Decoration
Earl Moser
Costume Designer
Clarence E. Mulford
Characters
Harrison Jacobs
Screenplay
William Conselman Jr.
Additional Dialogue
Doris Schroeder
Additional Dialogue
