Steve Rogers/Captain America (Chris Evans)
In his introductory film, the underrated 2011 period piece Captain America: The First Avenger, we see Steve Rogers as a small, good-hearted innocent who simply wants to do his part for his country and for his fellow men. But his bellowing patriotic duty is ultimately outsized compared to his short stature and scrawny frame, before he becomes the test subject of an extraordinary serum that gives him superhuman strength, size and build, the likes of which have never been seen so rapidly before. But his heart stays true, and Steve Rogers carries his waving flag throughout his journey fighting in the name of America. Eventually, he adopts the title of Captain America, and fights Nazis and other prevailing evils throughout the world.
Article source: https://www.cinemablend.com/news/2479394/the-5-best-character-arcs-in-the-marvel-cinematic-universe