Doctor Doom

We know – but still: he is too good a villain remain unused. And, since Fox has no clue how to make Fantastic Four movies, maybe the studio should add Doctor Doom as a main antagonist of the X-Men. It would be pretty interesting to see how the mutants deal with Doom’s genius and how he comes up with all sorts of plans and contraptions in order to counter the mutant abilities of his enemies.

For that matter, this would be an opportunity to introduce magic into the Mutant Shared Universe – real magic, as opposed to mutant powers.