Sesame Street Stays Up Late/South Park

Cast

 * Big Bird as Stan Marsh
 * Telly Monster as Kyle Broflovski
 * Oscar the Grouch as Eric Cartman
 * Elmo as Kenny McCormick
 * Baby Bear as Butters Stotch
 * Rosita as Wendy Testaburger
 * Merry Monster as Bebe Stevens
 * Prairie Dawn as Red
 * Grover as Mr. Garrison
 * Hoots the Owl as Mr. Mackey
 * Bjarne Betjent as Craig Tucker
 * Cookie Monster as Chef
 * Count von Count as Clyde Donovan
 * Mrs. Grouch as Heidi Turner
 * Zoe as Tammy Warner
 * Bert as Randy Marsh
 * Ingrid as Sharon Marsh
 * Gina as Liane Cartman
 * Herry Monster as Gerald Broflovski
 * Ernestine the Telephone Operator as Sheila Broflovski
 * Ernie as Officer Barbrady