<Li> Sebastian Stan as Bucky Barnes / Winter Soldier: A physically enhanced brainwashed assassin allied with Rogers; his best friend who reemerged after being thought killed in action during World War II . This portrayal is an amalgam of Barnes and the Winter Soldier, with Stan saying, "here's the guy when you merge the two . This is what came out . To me, he's never really going to be Bucky Barnes again . There's going to be recognizable things about him, but his path through the (experiences of) Winter Soldier is always going to be there, haunting him ." Because of this, the character has more lines in the film than in Winter Soldier . </Li> <Li> Anthony Mackie as Sam Wilson / Falcon: An Avenger allied with Rogers; a former pararescueman trained by the military in aerial combat using a specially designed wing pack . Wilson is aided by a robotic drone named Redwing . Discussing the relationship between Wilson and Rogers, Mackie said, "With Falcon and Cap, what's so great is there's a mutual respect . There's a soldier respect . What's great about...(Captain America: Civil War) is you get to see their relationship grow," adding, "He respects and admires Cap because Cap earned his rank as opposed to sitting in an office and just delegating orders ." Joe Russo stated that the inclusion of Barnes to Rogers' side forces Wilson to question the dynamic and relationship he has with Rogers going forward . </Li> <Li> Don Cheadle as James "Rhodey" Rhodes / War Machine: A close personal friend of Tony Stark's and an Avenger allied with Stark; an officer in the U.S. Air Force who operates the War Machine armor . Cheadle called Rhodes' appearance in the film a "bit more intense and pivotal" compared to his previous appearances . </Li> <Li> Jeremy Renner as Clint Barton / Hawkeye: A master archer allied with Rogers; a retired Avenger and S.H.I.E.L.D. agent . On Barton's reasons for joining Rogers' side, Renner said, "Cap was the first guy who called . Let's just get the job done so I can get home to the family," along with feeling an obligation to side with Scarlet Witch, since her brother, Pietro Maximoff / Quicksilver, sacrificed himself to save Barton in Avengers: Age of Ultron . On how he and Barton fit into the Marvel Cinematic Universe, Renner said, "I'm happy to be the ensemble . I'm not scratching or clawing to do a solo movie by any means...I think (Barton's) a utility guy that can bounce around into other people's universes a little bit". </Li>

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