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.

After a five-and-a-half-hour livestream that revealed Chris Hemsworth, Ian McKellen, Channing Tatum, and more would be in the movie via set chairs, the Iron Man star strolled into frame and sat on his own. He then looked over his right shoulder, put a finger to his lips, and shushed everyone tuning in.