Hayley Elizabeth Atwell born 5 April 1982 is a British and American actress Born and raised in London Atwell studied acting at the Guildhall School of Music and Drama and made her stage debut in a 2005 production of James Kerrs translation of the Ancient Greek tragedy Prometheus Bound She subsequently appeared in multiple West End productions and on television and was recognised for her breakthrough role as Lady Elizabeth Foster in The Duchess 2008 for which she was nominated for a British Independent Film Award for Best Supporting Actress Her leading performance in the miniseries The Pillars of the Earth 2010 earned her a nomination for the Golden Globe Award for Best Actress Miniseries or Television Film Atwell rose to international prominence with her portrayal of Agent Peggy Carter in the Marvel Cinematic Universe superhero film Captain America The First Avenger 2011 a role she reprised in the short film Agent Carter 2013 and the 20152016 television series of the same name in addition to other films and liveaction and animated series She also had roles in the war drama Testament of Youth 2014 the romantic fantasy Cinderella 2015 and the fantasy comedydrama Christopher Robin 2018 On the stage Atwell has received Laurence Olivier Award nominations for Best Supporting Actress for her role in A View from the Bridge 2010 and for Best Actress for her leading performances in The Pride 2013 and Rosmersholm 2020 In 2020 Atwell began hosting the podcast series True Spies which aims to give an insight into the world of espionage by asking listeners what they would do in reallife spy situations