William Boyd

Hopalong Cassidy

Russell Hayden

Lucky Jenkins

Sidney Toler

Fernando "El Melancolio" Lopez Ramirez

Steffi Duna

Chiquita

Sidney Blackmer

Ralph Merritt

Pedro de Cordoba

Valdez

William Duncan

Buck Peters

Anna Demetrio

Dolores

Eddie Dean

Naples

Glenn Strange

Slim Schultz

Jo Jo La Savio

Ernesto

Roy Brent

Henchman

Ken Darby

The King's Men Member

Jon Dodson

The King's Men Member

Martín Garralaga

Bolo-Carrier

Herman Hack

Rodeo Spectator

Bud Linn

The King's Men Member

Johnny Luther

Henchman

Jack Montgomery

Barfly

Tex Phelps

Rodeo Spectator

George Plues

Rodeo Spectator

Rad Robinson

The King's Men Member

Tony Roux

Gaucho

George Sowards

Henchman

Nate Watt

Director

Harrison Jacobs

Screenplay

Derwin Abrahams

Assistant Director

Harry Sherman

Producer

Joseph W. Engel

Associate Producer

Russell Harlan

Director of Photography

Ted Wells

Stunts

Victor Young

Original Music Composer

Carroll Lewis

Editor

Lewis J. Rachmil

Art Direction

John Leipold

Original Music Composer

Clarence E. Mulford

Characters

Earl Sitar

Sound

Earl Moser

Costume Design