14 MCU Heroes' First Appearances Vs. The End Of The Infinity Saga

List Rules
Vote up the heroes that changed the most from the first time we saw them to 'Endgame.'

The first movie of the Marvel Cinematic Universe premiered in 2008 and it's almost as if Pandora's box has been opened and there's no going back. We've seen our favorite heroes endure many challenges over the years and ultimately assemble in 2019 to save the universe from Thanos in one of the most epic movie team-ups of all time. Let's take a look at the toll the Infinity Saga took on the titular heroes of the MCU by comparing what they looked like in their first appearances to their future selves all the way up to Avengers: Endgame.