Avengers: Doomsday trailer reveals Robert Downey Jr.'s Doctor Doom in motion

Marvel released the latest Avengers: Doomsday trailer on 15 August 2026, giving the public its first look at Robert Downey Jr.'s Doctor Doom in motion, per The Hollywood Reporter. Downey Jr., who played Tony Stark across the MCU through Endgame, returns as the franchise's villain. The Russos direct; tickets are on sale; the film opens 18 December.