Robert Downey Jr. Films as Doctor Doom on Avengers: Doomsday Set

Robert Downey Jr. is set to return to the Marvel Cinematic Universe as the villain Doctor Doom in Avengers: Doomsday, scheduled for release on May 1, 2026. He recently shared behind-the-scenes photos from the film’s set, including one where he reads a book by fellow MCU actor Jeremy Renner, though Renner's involvement in the movie remains unconfirmed. Fans have noticed motion capture dots on Downey Jr.'s face in the photos, sparking speculation that Doctor Doom’s mask will be created using CGI nanotechnology, similar to other MCU characters' tech-enhanced suits. The film is directed by the Russo Brothers and features a star-studded cast including Chris Hemsworth, Vanessa Kirby, Anthony Mackie, and many others. Downey Jr. also posted Marvel-inspired artwork honoring his wife and mother-in-law, linking his personal life with his MCU return. Despite the excitement, many plot details and character appearances remain closely guarded by Marvel Studios.