6) Multiple Man
Multiple Man is a great character, something which makes it all the more frustrating that he was squandered in X-Men: The Last Stand (then again, so was every other mutant unfortunate enough to be sandwiched in for a cameo).
In that film, he played a very minor role as a member of Magneto’s Brotherhood, but the movie at least gave us an idea of the potential James Madrox has on the big screen.
With the ability to create almost countless duplicates of himself, recent comic books have actually seen some of those doubles take on a life and personality of their own, a potentially fascinating dynamic to explore.
With Fox developing TV shows revolving around the Hellfire Club and Legion, it’s not clear what the status of the long rumoured X-Factor Investigations series is, but that would certainly be a great place for Multiple Man to return to this universe.