Negaduck is the main antagonist for a majority of Darkwing Duck. There are two incarnations of him. The first was a manifestation of Darkwing Duck's evil side created by Megavolt's tronsplitter, while the second and more well-known version, the subject of this article, is an evil twin of Darkwing from a parallel universe known as the Negaverse. He first appeared as the leader of the Fearsome Five during the two-part "Just Us Justice Ducks" episode.