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)

The Harvest of Hate

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

Hoofbeats of Vengeance

as Rex, the Wonder Horse

Plunging Hoofs

as Rex (as Rex the Wonder Horse)

Wild Blood

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