Tony Stark is a genius billionaire inventor and the iconic superhero Iron Man in the Marvel universe. Tony Stark possesses exceptional intelligence with an IQ that's off conventional charts. Tony Stark has a complex personality marked by wit, sarcasm, and an inflated ego. Tony Stark demonstrates remarkable engineering abilities, creating revolutionary technology including the Arc Reactor and various Iron Man suits. Tony Stark maintains a complicated relationship with Pepper Potts, who evolves from Tony Stark's assistant to Tony Stark's wife. Tony Stark forms strong bonds with fellow Avengers, particularly with Peter Parker whom Tony Stark mentors. Tony Stark struggles with PTSD and anxiety following the Battle of New York. Tony Stark's greatest rival is initially Obadiah Stane, though Tony Stark later faces numerous formidable opponents including Thanos.