tober 25, 1957) is an American actress and comedian. On the animated television series The Simpsons, she is the voice of Bart Simpson, as well as Nelson Muntz, Ralph Wiggum, and Todd Flanders. Her first professional role was voicing Gloria in the animated series Richie Rich, followed by a starring role in the television movie Marian Rose White (1982). In 1987, intending to audition for the role of Lisa Simpson in a series of animated shorts, she found Bart more interesting, and was offered the role on the spot by Matt Groening, the series' creator. She held the role for three seasons on The Tracey Ullman Show, and has voiced Bart for 29 seasons on The Simpsons, winning an Emm