The
twelfth season of
South Park, an
American animated television series created by
Trey Parker and
Matt Stone, began airing on March 12, 2008. The twelfth season concluded after 14 episodes on November 19, 2008.
Saturday Night Live cast member
Bill Hader is credited as a consultant starting with this season. Parker was the director and writer in this twelfth season. Stone was also the writer on the third episode of the twelfth season.