Koko

Phantom Stallion

1954

as Rex's Horse

Red River Shore

1953

as Rex's Horse

Shadows of Tombstone

1953

as Rex's Horse

Down Laredo Way

1953

as Koko, Rex's Horse (as Koko the Miracle Horse of the Movies)

Iron Mountain Trail

1953

as Koko

Old Overland Trail

1953

as Rex's Horse

South Pacific Trail

1952

as Koko

Old Oklahoma Plains

1952

as Koko

Border Saddlemates

1952

as Koko - Rex's Horse

The Last Musketeer

1952

as Koko

Colorado Sundown

1952

as Miracle Horse of the Movies

Utah Wagon Train

1951

as Koko, Rex Allen's Horse (as Koko the Miracle Horse of the Movies)

Rodeo King and the Senorita

1951

as Koko - Rex's Horse

Hills of Oklahoma

1950

as Rex Allen's Horse (as The Miracle Horse of the Movies)

Typhoon

1940

as Koko