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