Nancy Campbell Cartwright (born October 25, 1957) is an American film and television actress, comedian and voice artist. She is best known for her long-running role as Bart Simpson on The Simpsons. She is also the aunt of pop star Sabrina Carpenter.
When tony Stark and Bruce banner try to jump-Start a Dormant peacekeeping program called ultron, Things go horribly wrong and it's up to earth's Mightiest heroes to stop the villainous Ultron from enacting his terrible Plan.
