Guest Stars Trey Parker voices Randy Marsh Trey Parker voices Mr. Garrison April Stewart voices Sharon Marsh Trey Parker voices Mr. Mackey Matt Stone voices Gerald Broflovski Trey Parker voices Clyde Trey Parker voices Stephen Stotch April Stewart voices Wendy Testaberger Trey Parker voices Jimmy Valmer Mona Marshall voices Linda Stotch Trey Parker voices Harrison Yates Matt Stone voices Stuart McCormick Matt Stone voices Tweek Mona Marshall voices Red McArthur Mona Marshall voices Mrs. Tweek