Rex

King of the Sierras

Rôle: Diablo

Robinson Crusoe of Clipper Island

Rôle: Rex, the Wonder Horse

Stormy

Rôle: Rex (as Rex King of Wild Horses)

The Adventures of Rex and Rinty

Rôle: Rex, The King of Wild Horses

The Law of the Wild

Rôle: Rex King of the Wild Horses

King of the Wild Horses

Rôle: Rex (as Rex the Wonder Horse)

The Vanishing Legion

Rôle: Rex

Parade of the West

Rôle: Mankiller (as Rex King of the Wild Horses)

The Harvest of Hate

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

Hoofbeats of Vengeance

Rôle: Rex, the Wonder Horse

Plunging Hoofs

Rôle: Rex (as Rex the Wonder Horse)

Wild Blood

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

Two Outlaws

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

Guardians of the Wild

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

Wild Beauty

Rôle: Thunderhoof, a horse

No Man's Law

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

The Devil Horse

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

Black Cyclone

Rôle: Rex (as Rex the Wild Horse)

Lightning Romance

Rôle: A Horse (as Rex the Wonder Horse)

The King of the Wild Horses

Rôle: The Black (as Rex the Wonder Horse)