William Hanna
William Denby Hanna was an American animator, director, producer, voice actor, cartoon artist, and musician. Hanna and Joseph Barbera co-founded Hanna-Barbera in 1957, which became the most successful television animation studio in the business. They created and produced programs such as The Flintstones, The Huckleberry Hound Show, The Jetsons, Scooby-Doo, The Smurfs, and Yogi Bear.