Instead, Downey Jr. will debut as the iconic Marvel supervillain Doctor Doom, with the actor having now teased his MCU comeback in a new image from the set of the Avengers sequel.

Ever since Robert Downey Jr took to the stage at Comic-Con 2024 to reveal he'd be playing Doctor Doom in the Marvel Cinematic Universe (MCU), it's safe to say fans have been divided into two camps.

Robert Downey Jr. just released an image of himself on Instagram seemingly to help promote a friend's endeavor as well as to tease fans with his upcoming role in "Avengers: Doomsday".