Crossbones will be the villain Captain America fights in the sequel Captain America: The Winter Soldier. Frank Grillo (End of Watch, The Grey) will play Brock Rumlow, a New York gang leader who becomes Red Skull's top henchman.
Anthony Mackie has also been cast, playing good guy The Falcon. Returning for the Captain America sequel are the people who play modern day S.H.I.E.L.D characters like Samuel L. Jackson (Nick Fury), Cobie Smulders (Maria Hill) and Scarlett Johannson (Black Widow) or froze with Captain America, like Sebastian Stan (Bucky Barnes).
Brothers Anthony and Joe Russo, who are known for directing TV shows like "Community" and "Happy Endings" are directing the picture. Captain America: The Winter Soldier is slated to hit theaters April 4, 2014 -- which kind of implies the summer movie season is moving up even earlier.