is an American voice actress, actress, and comedienne. She is best known for her long-running role as Bart Simpson
on the animated television series The Simpsons
. Cartwright voices other characters on the show, including Nelson Muntz
, Ralph Wiggum
, Todd Flanders
, and Database
In becoming a voice-over artist for animation, she was mentored by Daws Butler. It was at Hanna-Barbera Productions where she began her professional voice acting career (playing Gloria in that studio's animated adaptation of Richie Rich). Outside of The Simpsons, her voice credits since then have included Daffney Gillfin from Snorks, Bright Eyes from Pound Puppies, Mindy from Animaniacs, and Chuckie Finster from Rugrats (who took over the role in 2002, following the retirement of Christine Cavanaugh).
Among her Disney roles that she has voiced include Pistol Pete from Goof Troop, Fawn Deer from Bonkers, Rufus from Kim Possible, and Todd Daring from The Replacements.