Mona Y. Marshall is an American voice actress. She is most well-known for voicing many of the female characters (e.g. Sheila Broflovski, Linda Stotch, etc.) in Comedy Central's landmark animated series South Park, replacing the late Mary Kay Bergman, who died after the show's first three years. She is also best known for voicing prepubescent male characters, such as Izzy Izumi in the Digimon Adventure series and Terriermon in Digimon Tamers and the titular character El Chavo, as well Miss Pinster/Doña Clotilde in El Chavo The Anímated Series/El Chavo Animado.
She also voiced Kit Cat, Miss Fluff, and Mrs. Tusker in The Dragon That Wasn't (Or Was He?) and Mrs. Geriatrix in the American dub of Asterix and the Big Fight.
Her Disney and/or Pixar roles include Aquata in The Little Mermaid TV series, Sylvia Sundew in Amphibia, additional voices in Wreck-It Ralph, Kinect: Disneyland Adventures, Tangled, The Princess and the Frog, Get a Horse!, Frozen, English dubs of Studio Ghibli films (such as Ponyo, The Cat Returns, and Spirited Away), The Wild, Chicken Little, Monsters, Inc., Inside Out, The Hunchback of Notre Dame, Emmet in Monsters University, Matilda in Dumbo's Circus, and Alien Mother in Treasure Planet.