Irwin

Irwin is an anthropomorphic dog that appears in the episode Home Sweet Home. He first meet Buster at Camp Meadowcroak and, like Buster, he is also a third grader.

When he first met Buster he asked him if he could use the lower level of the bunk bed since he has to go to the bathroom a lot and the bed was closer to the door, which gives the possible evidence he might suffer from Nocturnal enuresis similar to what Jenna has.

He also stated to Buster that he had a snake named Busterfield that only ate crickets. He also has a close friend named Sanjeev who goes to the same school as himself and it's possible the whole third grade class is there too.

He is very kind and he and Sanjeev both become friends with Buster. Any future appearances is unknown at this time.

Appearance
Irwin is a dog with a cream complexion and he wears a green sweater with a hoodie, black colored jeans, and red and white colored sneakers.