3rd Grade Male Dog (Number 2)

Peter is an character that has made few appearances just like most of the other unnamed characters. He had one speaking role in the episode Arthur, World's Greatest Gleeper and ever since that episode he has been used as a background character throughout the series. His personality is not known much about because he is a background character. He is only seen in the earlier seasons, and then in removed from the show for an unknown reason.

Friends
He hung out with Otis during the opening of Arthur's, World's Greatest Gleeper and probably hangs out with the other background characters of the series.

Appearance
Peter is tanned dog that wears blue jeans, a dark blue and white striped shirt, yellow and white shoes, and a red baseball cap.