Skeletor

Skeletor ( /ˈskɛlɨtɔr/) is a fictional character and the main antagonist of the Masters of the Universe franchise created by Mattel. He is the archenemy of He-Man. Depicted as a muscular blue humanoid with a purple hood over his yellowing bare-bone skull, Skeletor seeks to conquer Castle Grayskull so he can learn its ancient secrets, which would make him unstoppable and enable him to conquer and rule all of Eternia. In the 2002 series, Skeletor was once a man named Keldor whose face accidentally got splashed with acid. He sacrificed his face to survive.