If you've seen the 'Captain America 2' trailer (or the 4-minute preview that ran in theaters with 'Thor: The Dark World'), you've already caught a glimpse of Crossbones, the Marvel villain played in the film by Frank Grillo. He starts off as an ally, but as you can see in the elevator beatdown, he eventually turns on Cap. Now, it looks like this isn't the last we'll see of Crossbones, as Grillo hints that Marvel has even bigger plans in store for the mercenary.
'Captain America: The Winter Soldier' begins production in early spring, and Marvel's not wasting any time with the casting. The studio is hard at work to find the perfect actor for the role of Cap's newest foe, and they've started by testing Frank Grillo -- but just which villain is he testing for?