.Marvel is carrying the Russo Bros. back to instruct the following two Avengers movies The VergeRobert Downey Jr. Sets Marvel Return as Winner von Ruin in 'Avengers: End Ofthe World' VarietyRobert Downey Jr. To Officially Come Back To The MCU As Doctor Doom Forbes' Avengers' superstar Robert Downey Jr. goes back to Wonder-- however as Medical Professional Doom U.S.A. TODAYMCU's Doctor Ruin Cast at Last for Avengers: Doomsday, and also It is actually Robert Downey Jr. |SDCC 2024 IGN.