Como Actor/Actriz
Plunging Hoofs
Rex (as Rex the Wonder Horse)
The Vanishing Legion
Rex
Robinson Crusoe of Clipper Island
Rex, the Wonder Horse
The King of the Wild Horses
The Black (as Rex the Wonder Horse)
Stormy
Rex (as Rex King of Wild Horses)
The Harvest of Hate
Rex, the World's Greatest Horse (as Rex the Wonder Horse)
The Black Cyclone
Rex (as Rex the Wild Horse)
King of the Wild Horses
Rex (as Rex the Wonder Horse)
The Adventures of Rex and Rinty
Rex, The King of Wild Horses
Guardians of the Wild
Rex - a Wild Horse (as Rex the Wonder Horse)
Parade of the West
Mankiller (as Rex King of the Wild Horses)
No Man's Law
Rex, a Wild Horse (as Rex the Wonder Horse)
The Law of the Wild
Rex King of the Wild Horses
The Devil Horse
The Devil Horse (as Rex - King of Horses)
King of the Sierras
Diablo
Lightning Romance
A Horse (as Rex the Wonder Horse)
Two Outlaws
Rex, a Horse (as Rex King of the Wild Horses)
Wild Beauty
Thunderhoof, a horse
Hoofbeats of Vengeance
Rex, the Wonder Horse
Wild Blood
Rex, Mary's Horse (as Rex the Wonder Horse)