Hayley Atwell will return as Peggy Carter in the upcoming film "Avengers: Doomsday," Marvel Studios said this week.
The return of the foundational character signals a shift toward integrating legacy relationships into the franchise's current narrative arc. By bringing back Carter, the studio aims to further develop her action-oriented role and continue her long-standing love story with Steve Rogers.
The announcement took place during the Marvel Studios panel at San Diego Comic-Con 2026 [1]. The event, held in San Diego, California, served as the primary venue for the studio to reveal new cast members for the upcoming project.
Atwell has previously played the role across multiple films and series. In a statement regarding her return, Atwell said, "You can’t have Steve without Peggy."
Marvel Studios said that the decision to bring back the character is rooted in a desire for more action involving Carter. This move integrates her back into the main cinematic timeline as the studio prepares for the scale of the Doomsday event.
While the studio has not released specific plot details, the confirmation of Atwell's return alongside other cast members suggests a broader effort to reunite key figures from the franchise's earlier phases. The reveal occurred during the high-profile 2026 gathering [1] of fans and industry professionals in the U.S.
“"You can’t have Steve without Peggy."”
The return of Peggy Carter suggests that Marvel Studios is leaning into nostalgia and character continuity to anchor the high stakes of the 'Doomsday' storyline. By reconnecting Carter and Rogers, the studio is prioritizing emotional stakes and legacy ties to maintain audience engagement as the franchise enters a new phase of its cinematic universe.
