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

George Archainbaud