Maxxor is an OverWorld creature and leader, including as being a mentor to Tom Majors, Sarah Laurence, Kaz Kalinkas, and Peyton Touhey. Along as being the everlasting rival of Chaor, the king and lord of the UnderWorld tribe.
And he is reprised by Sean Schemmel in the English dub and voiced by Taiten Kusunoki in the Japanese dub.