.Wonder is bringing the Russo Bros. back to direct the following two Avengers films The VergeRobert Downey Jr. Sets Marvel Rebound as Winner von Ruin in 'Avengers: Doomsday' VarietyRobert Downey Jr. To Formally Return To The MCU As Medical Professional Doom Forbes' Avengers' superstar Robert Downey Jr. goes back to Marvel-- however as Medical Professional Doom U.S.A. TODAYMCU's Doctor Doom Designated at Last for Avengers: Doomsday, and It's Robert Downey Jr. |SDCC 2024 IGN.