You'll find that Trey Parker and Matt Stone do almost every voice on South Park, with the exception of Token, Chef and most females.
http://www.marshu.com/articles/south-park-voices.php
Stella, Kylie, Kendra, Erica
"Characters in south park" is not a question nor is it a complete sentence, therefore it cannot be answered.
They live in the fictional town South Park in Colorado.
me
The South Park characters were not drawn. They were cut out from construction paper and used stop motion. Now the characters are computer-generated.
Matt Stone
Trey Parker voices My Hankey.
A leaked image and name was announced South Park The Stick of Truth
South Park. His name is Eric Cartman, but most of the characters just call him Cartman.
South Park episodes can be viewed free online at Hulu and YouTube. The website South Park Studios also allows one to view the episodes for free and has a guide on the characters.
Sp studios for south park characters or supehero machiene is always good ones