Credits

• 1938 ·King of the Sierrasas Diablo
• 1936 ·Robinson Crusoe of Clipper Islandas Rex, the Wonder Horse
• 1935 ·Stormyas Rex (as Rex King of Wild Horses)
• 1935 ·The Adventures of Rex and Rintyas Rex, The King of Wild Horses
• 1934 ·The Law of the Wildas Rex King of the Wild Horses
• 1933 ·King of the Wild Horsesas Rex (as Rex the Wonder Horse)
• 1931 ·The Vanishing Legionas Rex
• 1930 ·Parade of the Westas Mankiller (as Rex King of the Wild Horses)
• 1929 ·The Harvest of Hateas Rex, the World's Greatest Horse (as Rex the Wonder Horse)
• 1929 ·Hoofbeats of Vengeanceas Rex, the Wonder Horse
• 1929 ·Plunging Hoofsas Rex (as Rex the Wonder Horse)
• 1929 ·Wild Bloodas Rex, Mary's Horse (as Rex the Wonder Horse)
• 1928 ·Two Outlawsas Rex, a Horse (as Rex King of the Wild Horses)
• 1928 ·Guardians of the Wildas Rex - a Wild Horse (as Rex the Wonder Horse)
• 1927 ·Wild Beautyas Thunderhoof, a horse
• 1927 ·No Man's Lawas Rex, a Wild Horse (as Rex the Wonder Horse)
• 1926 ·Rex the Devil Horseas The Devil Horse (as Rex - King of Horses)
• 1925 ·Black Cycloneas Rex (as Rex the Wild Horse)
• 1924 ·Lightning Romanceas A Horse (as Rex the Wonder Horse)
• 1924 ·The King of the Wild Horsesas The Black (as Rex the Wonder Horse)