4th Grade Male Dog

4th Grade Male Dog is an unnamed character who made his debut in the episode D.W. All Wet. In the episode he was seen swimming with his friends. He often appears in various places at various times and is also seen with some members of the Tough Customers who he hangs out with. He's has spoken only twice so far in the series. The first time he spoke took place in the episode Arthur Goes to Camp and finally in the episode Arthur's Big Hit. Arthur Goes to Camp and Arthur's Big Hit were his most significant roles in the show, though he played a much bigger role in Arthur's Big Hit. In the episode he and the other members of the Tough Customers (Molly MacDonald and Rattles) motivated Binky to hit Arthur, which worked needless to say and much to the shock of Arthur himself. How he came to know Binky or other members of the tough customers is a completely mystery since in the episode Arthur Goes to Camp he was completely against Binky and was never seen hanging out with him until the episode Arthur Writes a Story. As for his personality he is mostly a bully and his family has never been shown in the series. He made his last appearance in Season 13. He will reappear in the Season 16 episode Based on a True Story.

Appearance
4th Grade Male Dog is a dog with a brown complexion. He wears dark gray jeans, an orange shirt, and has a dog collar armband on his wrist. He wears blue and white colored high tops. In the episode Arthur Goes to Camp he wore the same clothes except he had a black Camp Horsewater shirt with a red "H" on it. In the same episode he wore white armbands on both of his wrists instead of the black ones he has been seen wearing throughout his appearances in the show.

Trivia

 * With the exception of Artur Goes to Camp this character made occasional appearances in the earlier episodes and seasons. In the episode Arthur's Big Hit he spoke for the last time as this episode would in turn be his last hurrah. After Season 4 his appearances in the show started dwindling significantly. He did appear in the special It's Only Rock 'n' Roll, but by then his appearances had plummeted. Then after Season 13 he disappeared. His last known appearance so far took place in the episode The Pride of Lakewood. He was never seen in any episodes from either Seasons 14 or 15. He reappears again in the episode Based on a True Story along with a few other members of the Tough Customers.
 * This character just like the rest of the Tough Customers is also afraid of Binky.
 * He's good at catching frogs.