April Stewart, also known as Gracie Lazar, is an American voice actress. She is best known for providing the voices of several female characters in the animated comedy series South Park alongside fellow voice actress Mona Marshall. Born and raised in Truckee, California, Stewart started acting at the age of 12. Her father, Freddie Stewart, was a singer with the Tommy Dorsey Orchestra.
April is the voice of Liane Cartman, Sharon Marsh, Carol McCormick, Shelley Marsh, Mayor McDaniels, Principal Victoria, Wendy Testaburger and numerous other characters starring in South Park. She is also the voice of Maria Rivera on Nickelodeon's El Tigre: The Adventures of Manny Rivera.