Even before the controversial return of Robert Downey Jr to the MCU, Marvel made a habit of bringing characters back in strange and unexpected ways.

Robert Downey Jr. was vital to the birth of the Marvel Cinematic Universe on the big screen. His casting as Tony Stark, aka Iron Man, proved pivotal in helping to turn the MCU into the defining cinematic entity of the last 15 years.

The Russo brothers say Marvel Studios head Kevin Feige is the person who had the idea to cast Robert Downey Jr. as Victor Von Doom.