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.
Mona Simpson (The Simpsons) Mona Simpson (The Simpsons) Mona Penelope Simpson (née Olsen) is a recurring fictional character in the animated television series "The Simpsons". She has been voiced by several actresses, including Maggie Roswell, Tress MacNeille, Pamela Hayden, and most prominently, Glenn Close. Glenn Close's performances as Mona have been well received by critics and she was named one of the top 25 guest stars on the show by IGN. Mona was the estranged wife of Abe Simpson and the mother of Homer Simpson. In the episode "Mother Simpson" where she was introduced, it was established that Homer believed that his mother was