- For other uses, see List of Minor Characters.
- Main article: Alan Jackson
- Main article: Baby Cows
- Main article: Chantal
Chantal is an out-of-control baby who appeared in "Freak Strike" on The Maury Povich Show.
- Main article: Felipe
Francis Ford Coppola
- Main article: Francis Ford Coppola
Francis Ford Coppola appeared in the episode "Free Hat" as one of the directors who is invited to see the premiere of the remastered Raiders of the Lost Ark.
- Main article: Frederick Johnson
Frederick Johnson appears in the episode "Child Abduction is Not Funny" as "The Ghost of Human Kindness" to persuade Tweek Tweak that people are not as scary and dangerous as his parents and the new had led him to believe. He is later revealed to be a child abductor who uses the moniker of "The Ghost of Human Kindness" to get children to trust him.
- Main article: Future Butters
- Main article: Future Stan
Future Stan was hired by Randy and Sharon Marsh to tell their son, Stan, that his life went downward after taking drugs, thereby convincing him to never take drugs in the future. However, after Stan meets Butters' future self, Stan finds his "future self's" connection to Motivation Corp. and how his parents have lied to him.
- Main article: Gelgameks
Gelgameks are an alien species and represent the Roman Catholic Church on their planet. They appear in "Red Hot Catholic Love".
- Main article: Glen Dumont
Glen Dumont is an F.B.I. negotiator who appears in the episode "Fun with Veal". His job was to negotiate with the boys to have them give back the stolen veal, but instead he gives them weapons, has the word "veal" officially changed to "tortured baby cow", and gives them a cattle truck to escape to Mexico driven by Michael Dorn in full Worf makeup.
- Main article: Hat McCullough
Hat McCullough is a child murderer who appeared in "Free Hat".
- Main article: Jared Fogle
Jared Fogle appears in the episode "Jared Has Aides" to encourage the people of South Park to lose weight. He is the spokesperson for Subway who allegedly lost over 262 lbs. eating Subway Sandwiches, but later admits it was with the help of his assistants who he calls his "aides".
- Main article: John Edward
- Main article: Lemmiwinks
Lemmiwinks is the gerbil belonging to the fourth grade class at South Park Elementary. In the episode, "The Death Camp of Tolerance", Mr. Garrison inserts Lemmiwinks into Mr. Slave's ass with the hope that he'll get fired. Lemmiwinks then travels through Mr. Slave's digestive system to reach freedom.
Lolly the Candy Man
- Main article: Lolly the Candy Man
Lolly the Candy Man, the owner of Lolly's Candy Factory, appears in the episode "A Ladder to Heaven". He held a contest for a candy shopping spree at his store, which the boys had won. He stopped the boys from shopping because they had to show their winning ticket to him to prove they were the winners, and since they did not have it at the time, Lolly gave them a week to find it.
- Main article: Maury Povich
Maury Povich appeared in the episode, "Freak Strike", as the host of The Maury Povich Show, which had Eric Cartman and his mother as guests.
- Main article: Michael Dorn
Michael Dorn appears in the episode "Fun with Veal". When the boys steal some baby cows to prevent them from being slaughtered for veal, Cartman negotiates with the F.B.I. to have Dorn come in full Worf makeup and drive the cattle truck that will take them to Mexico.
- Main article: Mongolians
Phil and Josh
- Main article: Phil and Josh
Phil and Josh are salesmen from Aspen who appear in the episode "Asspen" to talk to the boys' parents about Aspen timeshares. In return for the free condo they stay at, the parents must attend the meeting where Phil and Josh explain how the timeshare works, however they are unable to leave and are forced to keep listening until they purchase timeshares.
Pope John Paul II
- Main article: Pope John Paul II
- Main article: Queen Spider
Queen Spider is the head of the Vatican and Catholicism, as revealed in "Red Hot Catholic Love".
- Main article: Rob Schneider
Rob Schneider is an Amreican actor and comedian who appeared at various points in "The Biggest Douche in the Universe".
- Main article: Russell Crowe
Russell Crowe appears in the episode "The New Terrance and Phillip Movie Trailer" on his show, Russell Crowe Fightin' Around The World, which chronicles the many fights Russell has 'round the world. The boys are forced to watch the show to see the trailer to Asses of Fire 2 during one of the commercial breaks.
- Main article: Sea People
The Sea People are brine shrimp that the boys purchase in the episode "The Simpsons Already Did It", thinking they were more anthropomorphic.
- Main article: Tad Mikowski
Tad Mikowski is an expert skier who constantly challenges Stan Marsh to races in "Asspen", despite him being a beginner. Tad easily beats Stan the first time, but continues to mock him and calling him Stan Darsh until he agrees to have a rematch on the K-13. Tad starts out winning, then continually sets traps to slow Stan down, but is distracted by a girl showing her breasts, long enough so that Stan wins the race.
- Main article: Thumper
Thumper is a skiing instructor who teaches the boys the basics of skiing in the episode "Asspen". When Stan is challenged to race on the K-13 against Tad Mikowsky, he asks Thumper to help train him and improve his skills enough to win the race.
Tolerance Camp Warden
The Tolerance Camp Warden is a one-off character who appeared in "The Death Camp of Tolerance".
- Main article: Vanity
Vanity is an out-of-control teen who appeared in "Freak Strike" on The Maury Povich Show.
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