Horace Horsecollar star of the cartoon. In his earliest incarnation, Horace was presented as Mickey Mouse's four-legged plow horse. He could walk upright on his hind legs, at which time his forelegs became gloved hands; at other times, he got back down on all fours and reverted to form. Horace mostly played bit-parts in the 30+ films in which he appeared. Like Goofy in his early "Dippy Dawg" appearances, Horace's body seemed to be formed of rubber tubing. He and Clarabelle Cow had an uncanny ability to change from somewhat normal farmyard animals into anthropomorphized beings as necessary. After departing the Disney
USA Cartoon Express Cartoon Network one year later, thus taking a chunk of "Cartoon Express" programming with it. The only Hanna-Barbera shows on the "Cartoon Express" afterwards were "The Smurfs", which did not leave the "Express" until 1993; and "Scooby-Doo", which disembarked the "Express" in 1994. In the fall of 1993, "Cartoon Express" introduced two original series, "Itsy Bitsy Spider" and "Problem Child" (based on the film franchise); both failed to catch on with viewers. "Teenage Mutant Ninja Turtles" became the new marquee series on the block. USA later briefly acquired the broadcast rights to Terrytoons shorts like Deputy Dawg and Mighty Mouse,