Munchy lives alone at home with his mother, Betty Lou Beaver. The name of Munchy's father is unknown. He possibly works somewhere far away from Lake Hoohaw, as Munchy indicated in "Collector's Edition" that his father sent him a shark tooth. Sometimes, his friends call him "Munch".
In ToonWorld, Munchy sometimes hangs out with Bingo Beaver, since they are both beavers.
He is known in particular for two things-- his semi-obsession with wood and his nervous behavior, often lacking self-confidence. This shy, bashful nature sometimes makes him a target for teasing from Flick Duck, though Flick rarely means to actually be cruel to Munchy.
- In "Munchy's Sinking Feeling", Munchy stated after his boat was wrecked that his dad chewed it for him and he's had it since he was born.
- Munchy idolizes Bucky Spacebeaver, a fictional hero that he sometimes reads about in comics.