The creators of South Park are (or were) LDS
Neither Trey Parker nor Matt Stone, the co-creators of South Park, are or ever were members of the Church of Jesus Christ of Latter-day Saints. This rumor was most likely started after viewers noticed the many references the controversial and highly popular cartoon made to Mormonism.
In the episode “All About the Mormons,” a Mormon family moves to South Park, and one of the boys finds out that they’re pretty nice. Then they have a fight, and at the end the Mormon boy teaches him a moral lesson: “Look, maybe us Mormons do believe in crazy stories that make absolutely no sense, and maybe Joseph Smith did make it all up, but I have a great life and a great family and I have the Book of Mormon to thank for that. The truth is, I don’t care if Joseph Smith made it all up, because what the church teaches now is loving your family, being nice, and helping people, and even though people in this town might think that’s stupid, I still choose to believe in it. All I ever did was try to be your friend, Stan, but you’re so high and mighty you couldn’t look past my religion and just be my friend back. You’ve got a lot of growing up to do, buddy.”
Parker and Stone were asked in an interview with Reason Magazine about their feelings on the Mormon religion. The following is an excerpt from the interview:
Parker: I’ve been fascinated with the Mormons for a long time. They are the nicest people in the world. If a religion’s going to take over the world, and the one that really believes “just be super nice to everyone” takes over, that’s all right with me.
Stone: I was raised agnostic. There was no religion in my house.
Parker: I was pretty much the same.
reason magazine: I have Mormon friends who are convinced you guys were raised Mormon, because of some of the references in the show.
Parker: Well, we grew up in Colorado. Colorado’s right next to Utah–you know, Mormon Central. My first girlfriend was Mormon, and I went to experience family home evening at her house for the first time. “What are you all doing?” “We’re sitting, and we’re singing songs and playing games together.” I was like, “Boy, that’s f****d up. Families are not supposed to be doing that.”
The two went on to help write the successful Broadway play, “The Book of Mormon”.