Wendy Testaburger is a fictional character in the animated television series South Park. She is best known for her on-again, off-again relationship with her boyfriend Stan Marsh, and being more intelligent and mature than most children her age, which is utilized by her activism and feminism. Wendy debuted as a nameless background character in Trey Parker and Matt Stone's 1995 college short film The Spirit of Christmas, and made her first appearance on television when South Park initially premiered on Comedy Central on August 13, 1997 with the episode "Cartman Gets an Anal Probe". She is currently voiced by April Stewart. Prior, she had been voiced by several different voice actors throughout the show's run: Mary Kay Bergman, Eliza Schneider, and Mona Marshall. The character has met generally positive reception for her portrayal of maturity and political correctness in contrast to most child characters in fiction.