Arnold is the protagonist of the Nickelodeon animated television series Hey Arnold!. His head is shaped like a giant football, thus earning him the nickname "Football Head".
Trivia[]
- Arnold made his first guest cameo appearance in a Winnie the Pooh/Pokemon mix crossover film Pooh and Ash's Adventures of Scooby-Doo and the Headless Horseman of Halloween.
- Arnold and his pals will join Barney on some of his adventures.