Cast
John Elliott
Prospector
Kansas Moehring
El Puma Rider
Herman Hack
Henchman
Lew Meehan
El Puma Rider
Tim McCoy
Bill Carson posing as El Puma
Budd Buster
Old Dobie
Dave O'Brien
Dr. Jerry Leonard
Forrest Taylor
Prof. Lucius Lloyd
Artie Ortego
El Puma Rider Pedro
Kenne Duncan
Henchman
Carl Mathews
Henchman Hank
Dan White
Henchman
Joyce Bryant
Marian Willis
Ben Corbett
Magpie
Ted Adams
Link Benson