[2] She also provided voices in El Tigre: The Adventures of Manny Rivera, The Legend of Korra, Infamous: Festival of Blood, and Minecraft: Story Mode.

Prior to this, many of the female characters on the series were originally voiced by Mary Kay Bergman.

Bergman originally provided the voices for Wendy Testaburger, Liane Cartman, Sharon Marsh, Carol McCormick, Shelley Marsh, Mayor McDaniels, Principal Victoria, Veronica Crabtree, Sheila Broflovski and other various female characters.

Marshall still provides voices in the show while Schneider later left the series after season 7 over a contract dispute in 2003.

Stewart also provided the voices of Maria Rivera on Nickelodeon's El Tigre: The Adventures of Manny Rivera, Raava and Fire Lord Izumi in The Legend of Korra, the main antagonist Bloody Mary in Infamous: Festival of Blood, and Prisoner X in Minecraft: Story Mode.