Credits

• 1954 · Phantom Stallion as Rex's Horse
• 1953 · Red River Shore as Rex's Horse (as Koko the Miracle Horse of the Movies)
• 1953 · Shadows of Tombstone as Rex's Horse
• 1953 · Down Laredo Way as Koko, Rex's Horse (as Koko the Miracle Horse of the Movies)
• 1953 · Iron Mountain Trail as Koko
• 1953 · Old Overland Trail as Rex's Horse
• 1952 · South Pacific Trail as Koko
• 1952 · Old Oklahoma Plains as Koko
• 1952 · Border Saddlemates as Koko - Rex's Horse
• 1952 · The Last Musketeer as Koko
• 1952 · Colorado Sundown as Miracle Horse of the Movies
• 1951 · Utah Wagon Train as Koko, Rex Allen's Horse (as Koko the Miracle Horse of the Movies)
• 1951 · Rodeo King and the Senorita as Koko - Rex's Horse
• 1950 · Hills of Oklahoma as Rex Allen's Horse (as The Miracle Horse of the Movies)
• 1940 · Typhoon as Koko