Don Onion is the main antagonist of the video-game "The Munchables" and is the highest-ranking leader of the Tabemon Monsters.

Long ago Don Onion and the Great Elder were the best of friends and worked together for the benefit of the world, researching ways to create good and healthy Tabemon Monsters.

However things changed for the worse when Great Elder stumbled upon Don Onion's horrific secret, he was transforming regular Tabemon Monsters into horrible mutated monsters via insane experiment
