All Cast
Tim McCoy
Bill Carson posing as El Puma
Joyce Bryant
Marian Willis
Ben Corbett
Magpie
Ted Adams
Link Benson
Budd Buster
Old Dobie
Dave O'Brien
Dr. Jerry Leonard
Forrest Taylor
Prof. Lucius Lloyd
Reed Howes
Sheriff
John Elliott
Prospector
Kenne Duncan
Henchman
Herman Hack
Henchman
Chick Hannan
Henchman
Carl Mathews
Henchman Hank
Lew Meehan
El Puma Rider
Kansas Moehring
El Puma Rider
Artie Ortego
El Puma Rider Pedro
Tex Palmer
Henchman
Tom Smith
El Puma Rider from Argentina (uncredited)
Frank Wayne
Stagecoach Driver
Wally West
Wagon Driver
