Iron Man

Tony Stark is the son of Howard and Maria Stark. He is the current CEO of Stark Industries. He has a past in weapons manufacturing, especially for S.H.I.E.L.D. He worked with Hank Pym to create Ultron five years prior to the events of Avengers: Earth's Mightiest Heroes. Hank Pym ended their partnership after he discovered that Tony was designing weapons for Ultron and trying to sell him to the military. At some point Tony invented the Arc Reactor, of which he later created a miniature version to protect his heart from a shrapnel wound he sustained at some unknown point. This arc reactor core would eventually power his Iron Man armor, the first of which was the Mark I. After this he began his superhero career and stopped selling weapons technology. He continued to build advanced suits of armor as he became active as a superhero. Tony entered the public eye as Iron Man when he saved a boatload of people from the evil robot Ultimo. His friend Rhodey often tried to dissuade him from working alone as a superhero and suggested that he continue working for S.H.I.E.L.D.