Marvel Studios Officially Recasts 2 Major Iron Man Characters — Just In Time For Robert Downey Jr. Returning To The MCU In Avengers: Doomsday

Marvel Studios owes everything to Iron Man, masterfully played by Robert Downey Jr. Without him and his patented charm, the entire MCU likely would've fallen apart before it even got going. That's probably why, in Marvel Studios' most recent hour of need, it reached out to Downey Jr.