Iron Man (2010 Marvel Animated Universe)

Iron Man (real name Anthony "Tony" Edward Stark) is a widely-known superhero and a founding member of the Avengers. A brilliant inventor, he designed the revolutionary Iron Man Armor, a high-tech exosuit powered by the Arc Reactor in his chest. He was a well-known and successful CEO of Stark Industries before his involvement with superheroes. Now he works as a futurist and the Avengers' founder and leader.

Personality and Traits
Iron Man at times is mistaken to be self-absorbed and arrogant, only to worry for himself on the battlefield. But actually he is caring and worries for others, which is why he didn't initially want to become the official leader of The Avengers in the first place. But after his genius intelligence and quick-thinking proved to be effective on the battlefield, he agreed to become the new leader, replacing Captain America. He used to be arrogant and self-absorbed, when he was a weapons maker.