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