Mona Marshall (born Mona M. Ianotti on August 31, 1947) is a American voice actress. Her roles have included parts in Japanese anime and American cartoons, including South Park. She has portrayed the characters of Sheila Broflovski, Linda Stotch, and various other characters since 2000.
She studied acting under the guidance of Daws Butler.
She is often cast in the roles of young male characters. Her roles have included parts in not only Japanese anime, but also in American animated TV series and several animated feature films.