<Li> Elizabeth Olsen as Wanda Maximoff / Scarlet Witch: An Avenger allied with Rogers; she can engage in hypnosis and telekinesis . According to Olsen, the character is "coming into her own and starting to understand and have conflict with how she wants to use her abilities ." As such, Maximoff's costume was "relatively casual" and "more clothes - based than superhero - based" according to Makovsky, since the Russos believed Maximoff was not a full - fledged Avenger yet . When asked about the relationship between her character and the Vision compared to the comics, Olsen said, "You learn a little bit more about what connects (Scarlet and Vision) in this film . And I think there's some really sweet moments between Paul and I, and it's more about how they relate to one another and their similarities just based on their superpowers ." </Li> <Li> Paul Rudd as Scott Lang / Ant - Man: A former petty criminal allied with Rogers; he acquired a suit that allows him to shrink or grow in scale while also increasing in strength . Rudd's suit "is streamlined and more high - tech" than the one seen in Ant - Man . Ant - Man director Peyton Reed had discussed the character and the way that the Ant - Man production had shot certain sequences with the Russo brothers, saying, "As we were doing (Ant - Man) and we were in post and they were getting ready to head out to Atlanta to do Civil War, we had a lot of conversations...It's important because there's this continuity that has to happen in this universe ." On the decision to have Lang grow in size to become Giant - Man in the airport battle, Feige said, "It was just a great idea to turn the tide of the battle in a huge, shocking, unexpected way . We have a lot of ideas for (Ant - Man and the Wasp), none of which are contingent upon revealing Giant - Man, so we thought this would be the fun, unbelievable unexpected way to do that ." Anthony Russo added that the transformation was the continuation of Lang's character arc from Ant - Man, saying "He's just really impressed with Captain America, he just wants to deliver and he figures out a way to deliver where he might actually tear himself in half but he's willing to do it and it works ." </Li> <Li> Emily VanCamp as Sharon Carter: A former agent of S.H.I.E.L.D. and Peggy Carter's niece, who now works for the CIA and supports Rogers . VanCamp stated that her character sides with Rogers because they both have "similar moral compasses". On a potential relationship between Rogers and Carter as in the comics, Evans said, "he's certainly open to it . Sharon is obviously relevant, but...we don't have to tie it up in one movie . So they have time ." VanCamp added, "We get to explore...I can't say we are going to that extent of it, but they are certainly getting to know each other ." </Li> <Li> Tom Holland as Peter Parker / Spider - Man: A teenager allied with Stark; he received spider - like abilities after being bitten by a genetically altered spider . Feige said that Parker would be torn between superhero ideologies, saying, "Does he want to be like these other characters? Does he want nothing to do with these other characters? How does that impact his experience, being this grounded but super powerful hero? Those are all the things that Stan Lee and Steve Ditko played with in the first 10 years of his comics, and that now we can play with for the first time in a movie ." On aligning with Stark, Anthony Russo said that, despite entering the conflict after the two factions have formed and not having much political investment, Parker's choice comes from "a very personal relationship" he develops with Stark . The Russos hoped "to take a very logical and realistic and naturalistic approach to the character" compared to the previous film portrayals . Anthony Russo added that the character's introduction had to fit "that specific tonal stylistic world" of the MCU, as well as the tone established by the directors in Winter Soldier, saying, "It's a little more grounded and a little more hard - core contemporary ." That was "coloring our choices a lot" with Parker . On the Spider - Man suit, Joe Russo described it as "a slightly more traditional, Steve Ditko influenced suit," and that the film would explore the way the suit operates, particularly the mechanical eyes . Holland chose not to read the whole Civil War script in order to avoid potentially leaking plot information publicly . He is signed on for at least three films, not including his Civil War appearance . Holland later expanded, saying he was signed for "three Spider - Man movies and three solo movies". </Li>

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