On screen
Cast
26 credited performers
Noah Beery Jr.
Stormy
Jean Rogers
Kerry Dorn
J. Farrell MacDonald
Trinidad Dorn
Raymond Hatton
Stuffy
Walter Miller
Craig
Fred Kohler
Deem Dorn
James P. Burtis
Greasy
Rex
Rex (as Rex King of Wild Horses)
Artwork unavailable
Rex Junior
Rex as a Colt (as Rex Jr.)
Artwork unavailable
Buck Bucko
Cowhand (uncredited)
Artwork unavailable
Roy Bucko
Cowhand (uncredited)
Edmund Cobb
Brakeman (uncredited)
Artwork unavailable
W.H. Davis
Mr. Dearman (uncredited)
Artwork unavailable
Art Dillard
Cowhand (uncredited)
Artwork unavailable
Bert Dillard
Cowhand (uncredited)
Chester Gan
Chinaman (uncredited)
Robert Homans
Train Conductor (uncredited)
Wilfred Lucas
Mack's Horse Trainer (uncredited)
Cliff Lyons
Cowhand (uncredited)
Cactus Mack
Arizona Wranglers Band Member Cactus (uncredited)
Sam McDaniel
Mack's Hostler (uncredited)
Monte Montague
Cowhand (uncredited)
Bud Osborne
Cowhand (uncredited)
Artwork unavailable
Jimmy Phillips
Cowhand (uncredited)
Harry Woods
Mack - Red Wing's Owner (uncredited)
Glenn Strange
Arizona Wranglers Band Member 'Peewee' Strange (uncredited)