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)

Abdullah Saeed
Additional Voices (voice)

Kyle Richards
Self (archive footage) (uncredited)

Oprah Winfrey
Self (archive footage) (uncredited)