Hayley Atwell is a British actress best known for her role as Peggy Carter in the Marvel Cinematic Universe. She first appeared in the film Captain America: The First Avenger in 2011 and has reprised the role in several other films and the television series Agent Carter. Atwell's performance has been praised for its depth and charisma. Born on April 5, 1982, in London, England, Atwell studied at the London Academy of Music and Dramatic Art. In addition to her work in superhero films, she has appeared in various stage productions and television series, showcasing her versatility as an actress.