Rex

acting

1. King of the Sierras → Diablo
2. Robinson Crusoe of Clipper Island → Rex, the Wonder Horse
3. Stormy → Rex (as Rex King of Wild Horses)
4. The Adventures of Rex and Rinty → Rex, The King of Wild Horses
5. The Law of the Wild → Rex King of the Wild Horses
6. King of the Wild Horses → Rex (as Rex the Wonder Horse)
7. The Vanishing Legion → Rex
8. Parade of the West → Mankiller (as Rex King of the Wild Horses)
9. Plunging Hoofs → Rex (as Rex the Wonder Horse)
10. The Harvest of Hate → Rex, the World's Greatest Horse (as Rex the Wonder Horse)
11. Wild Blood → Rex, Mary's Horse (as Rex the Wonder Horse)
12. Hoofbeats of Vengeance → Rex, the Wonder Horse
13. Two Outlaws → Rex, a Horse (as Rex King of the Wild Horses)
14. Guardians of the Wild → Rex - a Wild Horse (as Rex the Wonder Horse)
15. No Man's Law → Rex, a Wild Horse (as Rex the Wonder Horse)
16. Wild Beauty → Thunderhoof, a horse
17. Rex the Devil Horse → The Devil Horse (as Rex - King of Horses)
18. The Black Cyclone → Rex (as Rex the Wild Horse)
19. Lightning Romance → A Horse (as Rex the Wonder Horse)
20. The King of the Wild Horses → The Black (as Rex the Wonder Horse)