Drake ( Ben 10: Xobot Revolution )

Drake is a Seventeen Year old who has made contact with other Aliens. The Deos are his servants which has allowed him to take control of 10 Worlds.He is the master of the Negativetrix Aliens. He is also the main villian for the entire series, even though he isn't seen in all of Season 1, until the last few episodes of Season 2, and only a flashback in Season 4.