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 Roswell addition to her live action roles, Roswell did some voice acting in animated films and shows, including the voice of Teegra in "Fire and Ice" from 1983. This led to her being hired on the animated television series "The Simpsons" in 1989. Her first appearance was in the season one episode "Homer's Night Out", in which she voiced the character Princess Kashmir (a belly dancer who seduces Homer). Out of the total thirteen episodes of the first season, Maggie Roswell appeared in four; however, they were only minor roles. Maggie Roswell did not become a regular cast member until the