Trey Parker. The Show's male cast is made up almost entirely of Matt Stone and Trey Parker, the creators.
The scene where Stan sings about Wendy is actually in the South Park movie. ("South Park: Longer, Bigger and Uncut")
Stan has black hair.
Stan's name is Stanley Marsh.
Wendy is Stan's girlfriend.
The voice actor for Stan on South Park is Trey Parker.
Red and blue
Her name is Shelly
Bangladesh.
No, he isn't, but his friend Kyle is.
12 or 13
Stanley Marsh
Vietnam War