AAARRRGGHH!!! (voiced by Fred Tatasciore) is Jim's ally who has a deep bond with Toby. He was born a Krubera troll but joined the Gumm-Gumm army – after his traumatizing experience there, he became a self-proclaimed pacifist and remains guilty about his past. Despite his peaceful demeanor, he will fight with all his considerable strength to protect those he cares about.