3rd Grade Male Dog

The 3rd Grade Male Dog is an unnamed character that has apppeared throughout the series. He is used as a background character most of the time, but has had a few speaking roles like in early in the episode Arthur's Substitute Teacher Trouble. Like most background characters very little is known about him, but he does hang out with the main characters along with other background characters like the 3rd Grade Female Sheep.

Appearance
3rd Grade Male Dog is a brown dog that wears a tanned sweater, a yellow shirt underneath his sweater, blue pants, and orange and white colored sneakers.