Captain America: The First Avenger Studios confirmed the latter in May. Ryan Phillippe and John Krasinski were also considered for the role of Captain America. In April 2010, Sebastian Stan, who had been mentioned in media accounts as a possibility for the title role, was cast as Bucky Barnes. Stan is contracted for multiple films. Also in April, Marvel announced that Hayley Atwell had been cast as Peggy Carter, and that the film's name had been changed from "The First Avenger: Captain America" to "Captain America: The First Avenger". The next day it was reported that Joss Whedon would be rewriting the script as part
Captain America: The First Avenger or actual vehicles from the period were used as inspiration. Daniel Simon, who was previously responsible for many vehicle designs in "", was appointed Lead Vehicle Designer. Director Johnston cited Simon's book "Cosmic Motors" as a reason to trust his influence, saying "he's sort of the guy I wanted to be when I was designing stuff for "Star Wars"". The Red Skull's car, for instance, was based on two Mercedes-Benz vehicles from the 1930s, the 540K and the G4. "Variety" reported in March 2010 that Chris Evans was cast as Captain America and Hugo Weaving as the Red Skull; Marvel