.Wonder is actually taking the Russo Bros. back to direct the following two Avengers films The VergeRobert Downey Jr. Collections Marvel Return as Winner von Ruin in 'Avengers: End Ofthe World' VarietyRobert Downey Jr. To Formally Return To The MCU As Physician Doom Forbes' Avengers' star Robert Downey Jr. goes back to Wonder-- but as Physician Doom U.S.A. TODAYMCU's Medical professional Doom Designated at Last for Avengers: Doomsday, and also It's Robert Downey Jr. |SDCC 2024 IGN.