Robert Downey Jr.

Marvel Studios revealed at San Diego Comic-Con in July 2024 that Robert Downey Jr. will return to the Marvel Cinematic Universe as the supervillain Doctor Doom in the upcoming film Avengers: Doomsday. This announcement came after the success of Deadpool & Wolverine and replaces the previously planned Avengers: The Kang Dynasty. The news signals a shift in Marvel's Phase Six as it nears completion.