Topper - Arabian white stallion with black ears featured in sixty-six western movies from 1935-48, the western adventure HOPALONG CASSIDY/NBC/1949-51 and numerous circus, parades and public appearances through the 1950s. Topper was ridden by western cowboy star William Boyd when he starred in the 1930s Hopalong Cassidy movies and TV series based on the stories written by Clarence E. Mulford. Boyd purchased Topper in 1937 for the "Hoppy" movies.