Maggie Simpson Maggie's occasional speaking parts and other vocalisations are currently provided by Nancy Cartwright, but she has also been voiced by guest stars James Earl Jones, Elizabeth Taylor and Jodie Foster, and by series regulars Yeardley Smith and Harry Shearer. Maggie has appeared in various media relating to "The Simpsons" – including video games, "The Simpsons Movie", "The Simpsons" Ride, commercials and comic books – and has inspired an entire line of merchandise. "The Simpsons" uses a floating timeline in which the characters do not physically age, and as such the show is assumed to be set in the current year.
Maggie Simpson Jones voiced Maggie in "Treehouse of Horror V". Maggie would later have brief dialogue in "Treehouse of Horror IX", voiced by Harry Shearer, who used his Kang voice. In earlier episodes, Yeardley Smith did many of Maggie's squeaks, cries, laughs and occasional speaking parts, although in the later seasons her parts are done by Nancy Cartwright (including a single word spoken during the end credits of "The Simpsons Movie"). Jodie Foster voiced a Howard Roark-inspired Maggie in the season 20 episode "Four Great Women and a Manicure". In the occasional episodes set in the future ("Lisa's Wedding", "Bart to the