Rex
 | King of the Sierras (1938) Diablo |
 | Robinson Crusoe of Clipper Island (1936) Rex, the Wonder Horse |
 | Stormy (1935) Rex (as Rex King of Wild Horses) |
 | The Adventures of Rex and Rinty (1935) Rex, The King of Wild Horses |
 | The Law of the Wild (1934) Rex King of the Wild Horses |
 | King of the Wild Horses (1933) Rex (as Rex the Wonder Horse) |
 | The Vanishing Legion (1931) Rex |
 | Parade of the West (1930) Mankiller (as Rex King of the Wild Horses) |
 | The Harvest of Hate (1929) Rex, the World's Greatest Horse (as Rex the Wonder Horse) |
 | Hoofbeats of Vengeance (1929) Rex, the Wonder Horse |
 | Plunging Hoofs (1929) Rex (as Rex the Wonder Horse) |
 | Wild Blood (1929) Rex, Mary's Horse (as Rex the Wonder Horse) |
 | Two Outlaws (1928) Rex, a Horse (as Rex King of the Wild Horses) |
 | Guardians of the Wild (1928) Rex - a Wild Horse (as Rex the Wonder Horse) |
 | Wild Beauty (1927) Thunderhoof, a horse |
 | No Man's Law (1927) Rex, a Wild Horse (as Rex the Wonder Horse) |
 | The Devil Horse (1926) The Devil Horse (as Rex - King of Horses) |
 | Black Cyclone (1925) Rex (as Rex the Wild Horse) |
 | Lightning Romance (1924) A Horse (as Rex the Wonder Horse) |
 | The King of the Wild Horses (1924) The Black (as Rex the Wonder Horse) |