ANTHONY ''TONY'' STARK
''Anthony "Tony" Stark is a billionaire industrialist and inventor. He runs Stark Industries, originally started by his father, Howard Stark. While in Afghanistan, Tony was captured by Ten Rings, who ordered him to build the Jericho missile for them. Instead Stark, with Ho Yinsen, used their resources to build a suit of armor and make their escape. Returning to America, Stark improves his armor and becomes the superhero Iron Man.
Stark is still human, with the exception of an Arc Reactor in his chest. However, by the end of Iron Man 3, he has the shrapnel removed, no longer needing the arc reactor. He is one of the richest, smartest and most powerful men in the Marvel Cinematic Universe. His power, however, comes from his high-tech battle suit known as the Iron Man Armor, which grants him extraordinary strength, durability, flight capabilities and various on-board weaponry. He is a founding member of the Avengers.''
-Quoted from Marvel Movies Wiki
Stark is still human, with the exception of an Arc Reactor in his chest. However, by the end of Iron Man 3, he has the shrapnel removed, no longer needing the arc reactor. He is one of the richest, smartest and most powerful men in the Marvel Cinematic Universe. His power, however, comes from his high-tech battle suit known as the Iron Man Armor, which grants him extraordinary strength, durability, flight capabilities and various on-board weaponry. He is a founding member of the Avengers.''
-Quoted from Marvel Movies Wiki