Rex

King of the Sierras

as Diablo

Robinson Crusoe of Clipper Island

as Rex, the Wonder Horse

Stormy

as Rex (as Rex King of Wild Horses)

The Adventures of Rex and Rinty

as Rex, The King of Wild Horses

The Law of the Wild

as Rex King of the Wild Horses

King of the Wild Horses

as Rex (as Rex the Wonder Horse)

The Vanishing Legion

as Rex

Parade of the West

as Mankiller (as Rex King of the Wild Horses)

Hoofbeats of Vengeance

as Rex, the Wonder Horse

Wild Blood

as Rex, Mary's Horse (as Rex the Wonder Horse)

Plunging Hoofs

as Rex (as Rex the Wonder Horse)

The Harvest of Hate

as Rex, the World's Greatest Horse (as Rex the Wonder Horse)

Guardians of the Wild

as Rex - a Wild Horse (as Rex the Wonder Horse)

Two Outlaws

as Rex, a Horse (as Rex King of the Wild Horses)

No Man's Law

as Rex, a Wild Horse (as Rex the Wonder Horse)

Wild Beauty

as Thunderhoof, a horse

Rex the Devil Horse

as The Devil Horse (as Rex - King of Horses)

The Black Cyclone

as Rex (as Rex the Wild Horse)

The King of the Wild Horses

as The Black (as Rex the Wonder Horse)

Lightning Romance

as A Horse (as Rex the Wonder Horse)