He's a Bully, Charlie Brown

Larry Leichliter is an American animator and director who began his work in animation in 1975 with the made-for-TV film You're a Good Sport, Charlie Brown. Throughout his career, he has worked on Peanuts animated television films, but he has also contributed to other successful animated series including Nickelodeon's ChalkZone and The Mighty B!, The Walt Disney Company's Gravity Falls, and Cartoon Network's Time Squad, Squirrel Boy, The Marvelous Misadventures of Flapjack, Sym-Bionic Titan, and Adventure Time.