The Marvel Cinematic Universe (MCU) has no shortage of colorful characters in its arsenal. Tony Stark (Iron Man) is a “genius, billionaire, playboy, philanthropist,” a tech wizard who turned in a lifetime of producing and selling weapons to become Iron Man. Natasha Romanov (Black Widow) was raised practically from birth to be a programmed assassin. T’Challa (Black Panther) is the king and protector of the fictional African Kingdom of Wakanda.