Malekith

The Goddess of Thunder tries to reason with Thor and explain she was stopping Malekith, when Thor starts a fight with her to reclaim Mjolnir, telling Malekith that he will deal with him next.

After reaching the legendary forge of Nidavellir and persuading the blacksmith Drorin to create his weapon, Carnage has given him as a blueprint Malekith's codex, which contains the memory of All-Black.

Alan Taylor’s movie gives viewers no reason to care about Malekith or the threat he poses, and the movie ends with Thor vanquishing the threat and getting the girl, just like anyone who's ever seen a movie before would expect.

Now his long-term plans are coming to a head, as Malekith's forces ravage the Nine Realms.

Those who would fear that Thor's mercy would let Malekith live can also rest easy.

While unworthy, Thor would confront Malekith again only to lose his left arm to the Dark Elf and replace it with a metal prosthetic.

In his pursuit of destruction, Malekith has no problems killing.

It’s unclear what their plan is until late into their attack – ill-defined stakes plague the film throughout – and seemingly, by coincidence once more, Malekith stumbles upon Jane in Asgard and tries to take the Aether from her.