Rex

Hoofbeats of Vengeance

Character: Rex, the Wonder Horse

Lightning Romance

Character: A Horse (as Rex the Wonder Horse)

Black Cyclone

Character: Rex (as Rex the Wild Horse)

The King of the Wild Horses

Character: The Black (as Rex the Wonder Horse)

No Man's Law

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

Rex the Devil Horse

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

Wild Blood

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

Guardians of the Wild

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

Two Outlaws

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

King of the Wild Horses

Character: Rex (as Rex the Wonder Horse)

Plunging Hoofs

Character: Rex (as Rex the Wonder Horse)

Parade of the West

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

Stormy

Character: Rex (as Rex King of Wild Horses)

The Vanishing Legion

Character: Rex

The Law of the Wild

Character: Rex King of the Wild Horses

The Adventures of Rex and Rinty

Character: Rex, The King of Wild Horses

Robinson Crusoe of Clipper Island

Character: Rex, the Wonder Horse

King of the Sierras

Character: Diablo

The Harvest of Hate

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

Wild Beauty

Character: Thunderhoof, a horse