Nancy Jean Cartwright (born October 25, 1957) is an American actress. She is the long-time voice of Bart Simpson on the animated television series The Simpsons, for which she has received a Primetime Emmy Award for Outstanding Voice-Over Performance and an Annie Award for Best Voice Acting in the Field of Animation. Cartwright also voices other characters for the show, including Ralph Wiggum, Todd Flanders, Nelson Muntz, and Maggie. She is also the voice of Chuckie Finster in the Nickelodeon series Rugrats and its spin-off All Grown Up!, succeeding Christine Cavanaugh. Cartwright was born in Dayton, Ohio. She moved to Hollywood in 1978 and trained under voice actor Daws Butler. Her first professional role was voicing Gloria in the animated series Richie Rich, which she followed with a starring role in the television movie Marian Rose White (1982) and her first feature film, ()