Arnold Shortman

Arnold is the main protagonist of the Nickelodeon animated television series ''[http://heyarnold.wikia.com/wiki/Hey_Arnold! Hey Arnold!]''. His head is shaped like an American football, thus earning him the nickname "Football Head". Throughout the series' run, he was voiced by at least five different voice actors:J.D. Daniels (who did his voice in the pilot), Toran Caudell, Phillip Van Dyke, Spencer Klein (who did his voice in the movie), and Alex D. Linz who did April Fool's Day & "The Journal".