All over these characters are 18+!!

Main characters

Stan Marsh

Stanley "Stan" Marsh is a 12 grade student, 18 years old, who commonly has extraordinary experiences not typical of conventional small-town life in his hometown of South Park. He acts as the de facto leader of his friend group, often encouraging them in difficult times and taking charge in social causes. Much like his best friend Kyle, Stan often learns a valuable lesson by the end of episodes. Stan has black hair, light skin, blue eyes and is of average eighteen-year-old height. He usually wears a navy-blue beanie cap with a red trimming and a red pom-pom ball on the top of it, matching red gloves, a light-brown jacket with a matching red collar, blue jeans, and black shoes. Stan has his father's hair color (black) and his mother's skin tone.

Kyle Broflovski

Kyle Broflovski is often displays the highest moral standard of all the boys and is usually depicted as the most intelligent. When describing Kyle, Stone states that both he and Kyle are "reactionary", and susceptible to irritability and impatience. In some instances, Kyle is the only child in his class to not initially indulge in a fad or fall victim to a ploy. This has resulted in both his eagerness to fit in, and his resentment and frustration. Kyle is distinctive as one of the few Jewish children on the show, and because of this, he often feels like an outsider amongst the core group of characters. His portrayal in this role is often dealt with satirically, and has elicited both praise and criticism from Jewish viewers. In many instances,Kyle contemplates ethics in beliefs, moral dilemmas, and contentious issues, and will often reflect on the lessons he has attained with a speech that frequently begins with, "You know, I learned something today..." Kyle has curly red hair, a light skin tone, (no visible eye color due to how the series is animated), and is of average nine-year-old height. He wears a bright-green ushanka hat (ear-flap hat), matching green gloves, an orange coat with a matching green collar, army green cargo pants, and black shoes.

Eric Cartman

Eric Theodore Cartman has been portrayed as the main antagonist due to his short-tempered, aggressive, prejudiced and emotionally unstable character. These traits are significantly augmented in later as his character evolves, and he begins to exhibit psychopathic and extremely manipulativebehavior. Cartman is depicted as highly intelligent, able to execute morally appalling plans and business ideas with success. His intelligence goes further, as Cartman is shown to be a multi-linguist, able to speak many different foreign languages fluently. Among the main child characters, Cartman is distinguished as "the fat kid", for which he is continuously insulted and ridiculed. Cartman is frequently portrayed as a villain whose actions set in motion the events serving as the main plot of an episode. Other children and classmates are alienated by his insensitive, racist, homophobic, antisemitic, misogynistic, lazy, self-righteous, and wildly insecure behavior. Cartman is also the most prejudiced character on the show. He often makes antisemitic insults towards Kyle for being Jewish, constantly teases Kenny for being poor, particularly manipulates and mistreats Butters Stotch and displays an extreme disdain for hippies. As a result, Cartman usually gets the consequences for his actions due to a flaw in schemes or other characters proving to be smarter than him. Despite his antagonistic tendencies, Cartman has been portrayed as a protagonist or antihero on several occasions. He has short straight neatly-parted brown hair, pale skin, and an extremely fat body with neck flab and a double chin. Cartman wears a small teal hat with a small flat yellow puff-ball on top and a matching yellow band where the forehead part of the hat begins, a large bright-red coat, matching yellow gloves, brown khaki pants, and black shoes.

Kenny McCormick

Kenneth "Kenny" McCormick, soft-muffled and indiscernible speech—the result of his parka hood covering his mouth. He is friends with Stan and Kyle, while maintaining a friendship with Eric Cartman. Kenny is regularly teased for living in poverty, particularly by Cartman.

Kenny died in almost every episode, with only a few exceptions. The nature of the deaths was often gruesome and portrayed in a comically absurd fashion, and usually followed by Stan and Kyle respectively yelling "Oh my God! They killed Kenny!" and "You bastard(s)!". In the episode "Kenny Dies", Kenny dies after developing a terminal muscular disease, nevertheless, Kenny returned from a year-long absence after a while and has remained a starring character since, although he only appears once in Season 20. Kenny's character no longer dies every other day, and has only been killed occasionally following his return. Kenny's superhero alter ego, Mysterion. It is revealed that Kenny canonically has an ability to resurrect after dying, though he is always the only one who can ever remember dying, despite his friends always bearing witness. It is revealed that each time he dies, Kenny's mom spontaneously gives birth to him, and then is put back in his orange parka and in bed, to regenerate overnight. Kenny has bright-blond hair, a light skin color, blue eyes, and an average eight-year-old height. He wears a large orange parka whose large hood conceals his blond head completely with a faded-brown inside, matching faded-brown gloves, orange pants that match his parka, and black shoes. Kenny has a brother named Kevin, and a younger sister named Karen with whom he has a good relationship.

Secondary characters

Butters Stotch

A naive, optimistic, and gullible student at South Park Elementary. Often manipulated by Cartman and terrified of being grounded. He gradually became one of the show's most important characters and has a supervillain alter ego, Professor Chaos.

Randy Marsh

Stan and Shelley's father and one of the show's most prominent adults. A geologist known for overreacting, chasing trends, and causing chaos. Later becomes the owner of Tegridy Farms and is frequently at the center of major storylines.

Mr. Garrison

South Park Elementary's former fourth-grade teacher who later becomes President of the United States. Known for his cynical personality, controversial behavior, and complex storylines involving his identity and relationships.

PC Principal

The politically correct principal who replaces Principal Victoria. Initially an antagonist, he later becomes more sympathetic. He marries Strong Woman and raises their children, the PC Babies.

Mr. Mackey

The school guidance counselor famous for ending sentences with "m'kay." Despite his awkward mannerisms, he genuinely cares about students and often represents educational and social issues in the series.

Sharon Marsh

Stan and Shelley's mother and Randy's wife. Usually the voice of reason in the Marsh family, often reacting to Randy's outrageous behavior while trying to keep the family grounded.

Gerald and Sheila Broflovski

Kyle's parents. Gerald is a lawyer and city attorney who is later revealed to be the internet troll "Skankhunt42." Sheila is a protective mother known for leading campaigns against things she considers harmful.

Liane Cartman

Eric Cartman's mother. Kind-hearted but often overwhelmed by Eric's behavior. Earlier seasons frequently joke about her promiscuity, while later stories focus on her struggles raising Eric.

Stephen Stotch

Butters' strict and often overbearing father. Frequently grounds Butters and plays a major role in episodes involving the Stotch family's dysfunctional home life.

Jimmy Valmer

A student with a physical disability who uses crutches. Known for his stutter, sense of humor, and dream of becoming a comedian. He often provides surprisingly insightful commentary.

Wendy Testaburger

Stan's girlfriend and one of the smartest students in class. A strong feminist and voice of reason who often challenges Cartman and stands up for causes she believes in.

Clyde Donovan

A recurring student and friend of the boys. Known for his popularity, occasional vanity, and starring role in episodes such as "Lice Capades" and "Reverse Cowgirl."

Tolkien Black

One of the most prominent supporting students. Often featured in episodes addressing race, wealth, and social issues. His name was later revealed to be Tolkien rather than Token.

Craig Tucker

A sarcastic and pragmatic student who prefers avoiding the group's adventures. Known for his monotone voice and long-running relationship with Tweek.

Tweek Tweak

An anxious, hyperactive student whose family's coffee contributes to his nervous behavior. Famous for his catchphrase, "Too much pressure!"

Chef

The school's former cafeteria chef and a trusted mentor to the boys. Known for giving advice through soul songs and serving as one of the few sensible adults in town.

Terrance and Phillip

A Canadian comedy duo whose crude humor and fart jokes are adored by the children. They serve as a parody of lowbrow entertainment and play a major role in several South Park storylines.