.Wonder is taking the Russo Bros. back to instruct the next two Avengers movies The VergeRobert Downey Jr. Collections Wonder Return as Victor von Doom in 'Avengers: Doomsday' VarietyRobert Downey Jr. To Formally Return To The MCU As Doctor Doom Forbes' Avengers' celebrity Robert Downey Jr. goes back to Wonder-- but as Doctor Ruin USA TODAYMCU's Physician Doom Designated at Last for Avengers: End ofthe world, and It's Robert Downey Jr. |SDCC 2024 IGN.