Frank Grillo Talks 'Captain America: Civil War' Frank Grillo is all for returning to the Captain America franchise. And he's very aware that there's a lot of speculation that his villainous Crossbones might appear in Captain America: Civil War, but the news hasn't been made official yet. Still, the actor spoke freely about his eagerness to return to the superhero sequel.Because the film is called Captain America: Civil War, one might assume that Crossbones will definitely appear in said film. After all, the character plays a hand in the assassination of Captain America.