Mona Marshall is an American television and voice actress, known for her work in a number of cartoons, anime shows, films and video games.

Her major credits include South Park, where she voices many of the female characters on the show, .hack//Sign, Fraggle Rock: The Animated Series, CBS Storybreak, and Digimon.

When she was teaching fifth grade, the mother of one of her students suggested she enroll in a voice-over class taught by the late Daws Butler, voice of Yogi Bear and Quick Draw McGraw.

Her most notable roles in American cartoons are Sheila Broflovski (1999–present, after original voice actress Mary Kay Bergman committed suicide) and Linda Stotch on the popular television show South Park[3] as well as the title character in Doraemon and Kite, the main protagonist of the 2002 video game series .hack for PlayStation 2.

Outside of voice acting, Marshall has coached others on the craft, and has worked on a singing career with solo songs she would perform on stage.