Trey Parker

Stan Marsh / Eric Cartman (voice)

Matt Stone

Kyle Broflovski / Kenny McCormick / Butters Stotch / Gerald Broflovski (voice)

April Stewart

Wendy Testaburger / Sharon Marsh / Shelley Marsh / Liane Cartman / Alexis Testaburger (voice)

Mona Marshall

Sheila Broflovski / Mrs. Tweak / Linda Stotch (voice)

Kimberly Brooks

Laura Tucker / Linda Black (voice)

Jessica Makinson

Additional Voices (voice)

Vernon Chatman

Towelie (voice)

Jennifer Howell

Additional Voices (voice)

Kyle Richards

Self (archive footage) (uncredited)

Oprah Winfrey

Self (archive footage) (uncredited)