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Official Site: Comedy Central

The following are fictional character in the animated TV series South Park. They are all relatives of the main characters.

Randall "Randy" and Sharon Marsh (née Kimble ) are the most prominent set of parents on the show. Their first names are derived from the first names of series co-creator Trey Parker's parents, and Parker describes Randy as "the biggest dingbat in the entire show". Randy is voiced by Parker. Sharon was originally voiced by Mary Kay Bergman, later Eliza Schneider, and is currently voiced by April Stewart.

Randy and Sharon have known each other since childhood. Taking liberties with its floating timeline, the show established Randy and Sharon as being a couple as young adults during the flower power era. As husband and wife, the two tend to be content with each other. They maintain steady friendships with the parents of Stan's friends, and are revealed as enjoying the act of watching pornography together in order to enhance their sexual relationship. Their marriage has not been without its frequent arguments, which are usually instigated when Sharon is annoyed, ashamed, or disgusted by Randy's eccentricities. The two even once went through a brief divorce. After quickly entering a new relationship, Sharon realized how much she was still in love with Randy, and the two promptly reconciled. and supported Barack Obama during the 2008 presidential race.

Like Parker's father, Randy is a geologist, making his first appearance in the series while monitoring a seismometer in the episode "Volcano". Aside from briefly taking a job as an associate at a Wal-Mart-like discount store, and was portrayed as having this profession until he was fired at the end of the 12th season but he has mentioned that he attended college. One character has even implied that Randy has a doctorate. Randy is a survivor of self-inflicted testicular cancer. A recurring character trait of Randy's is his being prone to overreacting and obsessively seizing upon irrational ideas and fads, whether by himself or as part of a large contingent of the town's adult population. Though the show frequently depicts him to be a moderate drinker, numerous episodes have dealt with Randy's exorbitant behavior brought upon by his severe intoxication. A few instances of personal achievement have made Randy a hero in the eyes of his friends and fellow townsfolk, such as being awarded a Nobel Prize, and twice setting a record for producing the world's largest piece of human excrement. He is also shown to be the toughest of the South Park parents, by frequently getting in fights at Stan's baseball games, usually winning. He has an unbridled desire to prove himself, when no-one has asked him to do so. Randy has been subjected to ridicule from the entire town, ranging from when he inadvertently accelerated the effects of global warming by suggesting the entire populace take on a more uninhibited approach to passing gas in order to avoid the hazard of spontaneous combustion, Randy is quite musically talented as he can play guitar, as seen in "Guitar Queer-O", and is able to sing and dance; he was part of a pop band in the 1980s called The Ghetto Avenue Boys. He can also speak little Mongolian, having learned some in college, as illustrated in the episode "Child Abduction Is Not Funny".

Shelly Marsh has not been a contender in any CBUB matches.