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