Peggy Carter is a fictional character in the Marvel Comics universe, created by writer Stan Lee and artist Jack Kirby. She first appeared in Captain America Comics #1 in 1941. Peggy is a skilled agent of the Strategic Scientific Reserve (SSR) during World War II and is known for her intelligence, bravery, and combat skills. She is also a love interest of Steve Rogers, who becomes the superhero Captain America. In the Marvel Cinematic Universe (MCU), Peggy is portrayed by actress Hayley Atwell. She plays a significant role in the films, particularly in Captain America: The First Avenger and the television series Agent Carter. Peggy's character represents strong female leadership and has become an iconic figure in the franchise, inspiring many fans with her dedication and resilience.