Fan Casting Peggy Carter in Captain America: The First Avenger (2011)

Margaret "Peggy" Carter is a fictional character appearing in American comic books published by Marvel Comics. She is usually depicted as a supporting character in books featuring Captain America. Created by writer Stan Lee and artist Jack Kirby, she first appeared in Tales of Suspense #77 as a World War II love interest of Steve Rogers in flashback sequences. She would later be better known as a relative of Captain America's modern-day significant other Sharon Carter. Hayley Atwell portrayed the character in the Marvel Cinematic Universe, beginning with Captain America: The First Avenger (2011), and continuing in the Marvel One-Shot Agent Carter, Captain America: The Winter Soldier (2014), the television series Marvel's Agents of S.H.I.E.L.D. and Marvel's Agent Carter, Avengers: Age of Ultron (2015), Ant-Man (2015), and Avengers: Endgame (2019).