Malekith is the primary antagonist of Thor: The Dark World. He is the leader of the Dark Elves of Svartalfheim, having lead them into battle against king Bor and the Asgardians five thousand years ago. At the end of that conflict, he and his race were defeated and entered a state of suspended animation within one of their warships until the Aether resurfaced, awakening them. Malekith and the Dark Elves sacked Asgard in their quest to reclaim the Infinity Stone and use it's reality-warping power together with the phenomenon known as the Convergence to transform all matter in the universe into dark matter. However despite Malekith's best efforts, the Dark Elves were again defeated by Thor and his companions.