Derth Mulgus is an enemy of Weegee and Suicide Mousegee. He at first was a loyal subject of Weegee. However, he eventually started disagreeing with Weegee's ways, so he rebelled. He attempted to assassinate Weegee, but was stopped by Suicide Mousegee. They dueled, until Suicide Mousegee cut him in half. He was rescued by his father, who put him in a life support suit to survive. Ever since then, he's been having terrorist attacks on Suicide Mousegee and Weegee. He is a Sith Lord.