<P> Some of the original voice actors left the show . Mary Kay Bergman voiced the majority of the female characters until her suicide on November 11, 1999 . Mona Marshall and Eliza Schneider succeeded Bergman, with Schneider leaving the show after its seventh season (2003). She was replaced by April Stewart, who, along with Marshall, continues to voice most of the female characters . Issac Hayes, who voiced the character Chef, left the show after Parker and Stone's depiction of his religion Scientology in the episode Trapped in the Closet . </P> <P> Parker and Stone voice most of the male South Park characters . Mary Kay Bergman voiced the majority of the female characters until her suicide on November 11, 1999 . Mona Marshall and Eliza Schneider succeeded Bergman in 2000, with Schneider leaving the show after its seventh season (2003). She was replaced by April Stewart, who, along with Marshall, continues to voice most of the female characters . Bergman was originally listed in the credits under the alias Shannen Cassidy to protect her reputation as the voice of several Disney and other kid - friendly characters . Stewart was originally credited under the name Gracie Lazar, while Schneider was sometimes credited under her rock opera performance pseudonym Blue Girl . </P> <P> Other voice actors and members of South Park's production staff have voiced minor characters for various episodes, while a few staff members voice recurring characters; supervising producer Jennifer Howell voices student Bebe Stevens, co-producer and storyboard artist Adrien Beard voices the school's only black student, Token Black, writing consultant Vernon Chatman voices an anthropomorphic towel named Towelie, and production supervisor John Hansen voices Mr. Slave, the former gay lover of Mr. Garrison . Throughout the show's run, the voices for toddler and kindergarten characters have been provided by various small children of the show's production staff . </P> <P> When voicing child characters, the voice actors speak within their normal vocal range while adding a childlike inflection . The recorded audio is then edited with Pro Tools, and the pitch is altered to make the voice sound more like that of a fourth grader . </P>

Who does the voice of token on south park