- Trey Parker (Eric Cartman / Stan Marsh (voice))
- Matt Stone (Kyle Broflovski / Kenny McCormick (voice))
- Mona Marshall (Sheila Broflovski (voice))
- Jennifer Howell (Bebe Stevens (voice))
South Park — S6E7
Episode: The Simpsons Already Did It
Air Date: 2002-06-26
Runtime: 23 min
Overview
Professor Chaos returns with brand new, super evil, schemes to wreak havoc on South Park; unfortunately, the Simpsons have already done them all. Meanwhile, a super secret ingredient helps Cartman's "Sea People" evolve at an alarming rate.