.Marvel is bringing the Russo Bros. back to direct the upcoming two Avengers movies The VergeRobert Downey Jr. Collections Wonder Rebound as Winner von Ruin in 'Avengers: Doomsday' VarietyRobert Downey Jr. To Officially Return To The MCU As Physician Doom Forbes' Avengers' superstar Robert Downey Jr. goes back to Wonder-- but as Medical Professional Doom United States TODAYMCU's Doctor Ruin Appointed finally for Avengers: End ofthe world, as well as It's Robert Downey Jr. |SDCC 2024 IGN.