<Li> Hugo Weaving as Johann Schmidt / Red Skull: Adolf Hitler's head of advanced weaponry and commander of the terrorist organization Hydra, whose own plan for world domination involves harnessing the power of the magical object known as the Tesseract . Weaving stated that he patterned Red Skull's accent on those of Werner Herzog and Klaus Maria Brandauer . About the character, Weaving remarked, "I think the major difference between Skull and Cap, they've both had the serum, and the serum seems to augment certain qualities that each of them have . Cap is much more in tune with other people I think . Schmidt is in tune with himself, and his own needs, and his own ego, so I suppose it augments that . From that point of view, they're quite opposite ." </Li> <Li> Hayley Atwell as Peggy Carter: An officer with the Strategic Scientific Reserve who works with Phillips on the super soldier project . Regarding her preparation for the role, she said, "I'm training at the moment six days a week to make her a bit more military and make it convincing that I could kick butt ." About the character, Atwell stated, "I likened her character to that famous Ginger Rogers quote . She can do everything Captain America can do, but backwards and in high heels . She's an English soldier through and through, although she always looks fabulous . She might stand there with a machine - gun shooting Nazis, but she's obviously gone to the loo beforehand and applied a bit of lipstick . She doesn't need to be rescued . That's exciting to me--her strength ." She added, "I think she's quite stubborn, a slightly frustrated woman who struggles with being a woman in that time . But more importantly she's a modern woman and she sees something in Captain America that she relates to, and becomes kindred spirits . He treats her very differently to how she's been treated by lots of men, in this kind of dominated world she lives in . So she's very much a fighter ." </Li> <Li> Sebastian Stan as James Buchanan "Bucky" Barnes: A sergeant in the United States Army, Rogers' best friend and member of his squad of commandos . Stan has signed on for "five or six pictures". He revealed that he did not know anything about the comic books, but watched a lot of documentaries and films about World War II in preparation for the role, calling Band of Brothers "very helpful". About the role, Stan stated, "Steve Rogers and Bucky are both orphans and kind of like brothers . They kind of grow up together and look after each other . It's a very human, relatable thing...I also wanted to look out for how their relationship changes once Steve Rogers becomes Captain America . There's always a competition and they're always one - upping each other . I paid attention to how Bucky is affected by Steve's change and suddenly Steve is this leader". </Li> <Li> Dominic Cooper as Howard Stark: The father of Tony Stark, who worked on various government projects dating back to the World War II era . About the role, Cooper stated, "It's an opportunity where you can see his future because I know the guy who becomes my son and I see myself as an older version in Iron Man 2 which is great for an actor to have those tools . All I know of him is that he's a fantastic engineer and inventor and a very slick Howard Hughes type that's into aviation and women!" </Li>

Where was captain america first approached by the man who assembled the avengers