Nancy Cartwright is an American voice actress, film and television actress, and comedian. She is known for her long-running role as Bart Simpson on the animated television series The Simpsons. Cartwright also voices other characters for the show, including Nelson Muntz, Ralph Wiggum, Todd Flanders, Kearney, and Database.

In 2017, Cartwright received an Emmy Award nomination for Outstanding Character Voice-Over Performance for her work in the "Looking For Mr. Goodbart" episode of Fox’s The Simpsons.