South Park/Sonic Adventure DX

Cast

 * Eric Cartman as Sonic
 * Butters Stotch as Tails
 * Stan Marsh as Knuckles
 * Liane Cartman as Amy
 * Kyle Broflovski as Big
 * Kenny McCormick as E-102 Gamma
 * Scott Tenorman as Dr. Eggman
 * Sharon Marsh as Tikal
 * Randy Marsh as Pachacamac
 * Scott the Dick as E-100 Alpha aka Zero
 * Satan as Chaos