William Boyd
— Hopalong Cassidy
Andy Clyde
— California Carlson
Rand Brooks
— Lucky Jenkins
Elaine Riley
— Nora Murray
James Craven
— Mordigan
Robert B. Williams
— Henchman Pete Walters
Alberto Morin
— Ramon De Lara, faro dealer
Joel Friedkin
— Dr. White
Francis McDonald
— Henchman Longhorn
Lee Tung Foo
— Wong
Herbert Rawlinson
— John Murray
William F. Leicester
— Sid Murray
Joan Barton
— Mary Murray
Dewey Robinson
— Joe, the bartender