This short guy with yellow hair and a tiny blue hat on his head is called Arnold Shortman and he is the main character of the cheerful kind animated series Hey Arnold!. The main striking detail in his appearance is his head, which in shape resembles an American football, for which Arnold was nicknamed the Football Head. Arnold is a very calm, intelligent, amorous idealist and dreamer. He has a pink pet pig, Abner, with dog habits. The cartoon cursor for a mouse with Arnold Shortman and Pig!