Credits

• 1954 ·Phantom Stallionas Rex's Horse
• 1953 ·Red River Shoreas Rex's Horse (as Koko the Miracle Horse of the Movies)
• 1953 ·Shadows of Tombstoneas Rex's Horse
• 1953 ·Down Laredo Wayas Koko, Rex's Horse (as Koko the Miracle Horse of the Movies)
• 1953 ·Iron Mountain Trailas Koko
• 1953 ·Old Overland Trailas Rex's Horse
• 1952 ·South Pacific Trailas Koko
• 1952 ·Old Oklahoma Plainsas Koko
• 1952 ·Border Saddlematesas Koko - Rex's Horse
• 1952 ·The Last Musketeeras Koko
• 1952 ·Colorado Sundownas Miracle Horse of the Movies
• 1951 ·Utah Wagon Trainas Koko, Rex Allen's Horse (as Koko the Miracle Horse of the Movies)
• 1951 ·Rodeo King and the Senoritaas Koko - Rex's Horse
• 1950 ·Hills of Oklahomaas Rex Allen's Horse (as The Miracle Horse of the Movies)
• 1940 ·Typhoonas Koko