MCU Confirms Avengers: Doomsday December 2026 Release With Over 25 Cast Members

The upcoming Marvel Cinematic Universe film Avengers: Doomsday, set for release in December 2026, is shaping up to be a major event with an expanding roster of characters. The film will introduce Reed Richards and Sue Storm's son Franklin Richards, a powerful character capable of altering reality, while speculation grows that Valeria Richards, their daughter with a complex backstory involving Doctor Doom, may also debut. Fans are speculating on the return of Kat Dennings as Darcy Lewis, a fan-favorite character from the Thor films and WandaVision, after she shared a photo with Captain America's shield, fueling rumors of her involvement despite her denying current participation. Darcy's potential role is further hinted at by her appearances in the animated series What If...?, where her character has unique storylines that could tie into Doomsday. Chris Hemsworth's Thor is confirmed to play a significant role in the film, with speculation based on the actor's past comments that this could be his final appearance and possibly a heroic death. The Russo brothers are directing, and other confirmed cast members include Vanessa Kirby as Sue Storm, Pedro Pascal as Reed Richards, and Sebastian Stan as Bucky Barnes, making Avengers: Doomsday a highly anticipated installment in the MCU's future.