Archduke Nonsense or Prince Nonsense is a main antagonist in TwinBee Yahho!. He is voiced by Nobuhiko Kazama. Loud, pompous and extremely self-important, Nonsense has designs upon the throne of Wonderland, which he briefly gains through a coup. What he hasn't told everyone else is that Warumon is helping him out by providing a lot of the necessary firepower. Nonetheless, he succeeds in persuading a large part of the military to support his claims to the succession. He does his fighting in a huge battle-suit modelled on Lewis Carroll's Alice. Has a fondness for saying 'Nonsense' a lot.