We recently reported that Mads Mikkelsen (Casino Royale) would be joining Tom Hiddleston as a baddie in Thor 2, so Iron Man 3 went ahead and added their own firepower.  In this case, "Firepower" is actually the villain that Ashley Hamilton (Sunset Beach) is in talks to play.  In the Marvel universe, Hamilton's character was the pilot of a "power suit" prototype built by the government (likely, S.H.I.E.L.D.) under the codename "Project: Firepower."  And we all know that, once you've strapped on a suit of battle armor, it doesn't take too long before you challenge Tony Stark/Iron Man himself (Robert Downey Jr.).  Also returning, in a producer capacity, will be Jon Favreau.  But it looks like fans will be able to see the Iron Man director on screen as well.  Hit the jump for more. Variety reports that Hamilton is in talks to star as "Firepower," another villain that hopes to take down Iron Man.  It may help to know that the plot of Iron Man 3 borrows from Warren Ellis' "Iron Man: Extremis" arc in the comics, which involves the spread of a virus through nanotechnology.  The picture also boasts Rebecca Hall in a role opposite Downey Jr. as a "sexy scientist;" James Badge Dale as another potential villain, Eric Savin/Coldblood and, of course, Sir Ben Kingsley in a villainous role that hasn't been confirmed as of yet.However, Favreau's return to the set was confirmed by the actor/director himself, as he tweeted the following image of his "Happy Hogan" chair from set:Directed by Shane Black, Iron Man 3 also stars Gwyneth Paltrow, Don Cheadle and Guy Pearce and is slated for an opening of May 3rd, 2013.