Originally Posted by jaqua99
wait, what demi god has ironman faced?
Unless you mean Thor?
I'm pretty sure he meant Loki actually...
As for the actual question, as we have already seen or will see the following:
and assuming we don't see any reprisals... I would like to see Controller.
Instead of mind control it could be some sort of hack/virus that allows him to Control Iron Man's suit (maybe even with Stark inside it!). That could lead to some bad press and perhaps War Machine will need to save him.
Jeffrey Dean Morgan or Javier Bardem could fit the role. I just hope RDJ, Gweneth Paltrow and Don Cheadle are still around to fill their respective shoes.