During the Marvel Studios panel at this year’s San Diego Comic-Con, fans got confirmation that Hayley Atwell will reprise her beloved role as Peggy Carter in Avengers: Doomsday. Last year, Marvel kicked off production on Avengers: Doomsday with a marathon livestream that revealed 27 cast members over the course of several hours. While Marvel kept Peggy Carter under wraps until now, her involvement always felt like a logical next step. Peggy Carter is one of the MCU’s most enduring fan favorites. If Marvel is bringing Peggy Carter back into the fight, fans will be hoping she has a real impact on the future of the MCU.