In the episode of South Park (1997) where Butters' first name first changes from Eric or Leopold, he is credited as Eric "Leopold" Stough.
The character of Leopold (formerly Eric) "Butters" Stotch on South Park (1997) is a lampoon of him.
Attended University of Colorado with show co-creators Trey Parker and Matt Stone
Worked on the original "handmade" pilot of "South Park" with Trey and Matt
Went to elementary school with his boss Trey Parker.