In the final unaired episode, "Bye, Bye, Beavers", Norb and Dag have a conversation about being cancelled and rerun over and over again, at virtually no cost for the network.
Stacy and Chelsea, Norbert and Daggett's sisters, were voiced by Creator Mitch Schauer's real-life daughters, Stacy and Chelsea.
Norbert and Daggett are the only characters to show up in all sixty-three episodes.
It was revealed that the town, in which Norb and Dag live, is Wayouttatown, Oregon.
Angry Beavers was inspired from Mitch Schauer's early years in Oklahoma when he was homeless and often spotted beavers in a nearby river. Schauer also stated that cartoons such as The Pink Panther, The Flintstones, and Rocky and Bullwinkle were the primary influences for the show.