Selfish, arrogant, and extremely egocentric. He thoroughly looks down on others based on race, religion, and poverty. A genius of evil wit who deceives adults and carries out borderline criminal plans to get what he wants. A mama's boy who is pampered at home and acts like a toddler toward his mother. Vindictive; he won't stop seeking revenge until he socially ruins someone, even over a minor grudge. A boy wearing a red jacket and a blue knit cap with a yellow pom-pom.

The most "normal" and sensible person in the group. He is often appalled by Cartman's antics and acts as the voice of reason alongside Kyle. Naive; he worries easily about romance and relationships, and has a side that falls into heavy nihilism when depressed. An animal lover who sometimes takes extreme action to protect animal rights. A substance abuser (alcohol). Best friends with Kyle. A boy wearing a brown jacket and a blue knit cap with a red pom-pom.

A boy with a strong sense of justice, high morals, and sharp intelligence. A stubborn idealist who won't compromise his beliefs and cannot tolerate injustice or discrimination. Cartman's arch-nemesis; because he is Jewish, he is constantly provoked by Cartman, leading to intense arguments (and sometimes fistfights). A hot-blooded youth who often takes the role of passionately explaining "what I learned today" at the end of a story. Best friends with Stan. A boy wearing an orange jacket and a green flight cap (trapper hat).

A mysterious poor boy whose mouth is hidden by his parka hood. Possesses extreme erotic knowledge; he is the most sexually knowledgeable among his friends and often makes lewd remarks. Self-sacrificing and immortal; he suffers a tragic death in almost every episode but returns in the next as if nothing happened. A devoted brother who acts as the hero "Mysterion" behind the scenes to protect his sister. A boy wearing an orange hooded parka (covering most of his face).

A nihilistic boy who is always cool and rarely shows emotion. A realist who finds the antics of the main four-man group annoying and tries to keep his distance. Disrespectful attitude: his voice is always monotone, and he has a habit of flipping the bird to everyone. Caring: he is very patient and rational when dealing with his boyfriend, Tweek. A boy wearing a blue jacket and a blue earflap hat with a yellow pom-pom.

A boy with severe anxiety who is constantly in a state of extreme panic. Caffeine addict: he is forced to drink massive amounts of coffee from his family's shop, causing his body to shake constantly. Paranoid: he makes a huge fuss over minor events, thinking the "world is ending" or he is "targeted by the government." Dependent on Craig: when he panics, he regains his composure by having his boyfriend Craig calm him down. A boy wearing a lime green shirt (buttoned incorrectly), no hat.

A pure, innocent, and incredibly gullible boy. Absolutely obedient: he believes Cartman's lies 100% and is always used as a convenient scapegoat. Unreasonable home environment: he gets grounded by his parents for the smallest things, yet he continues to love them. Dark persona: when he reaches his limit, he transforms into the evil genius "Professor Chaos" to destroy the world, though his plans are always petty and fail. A boy wearing a light blue jacket, no hat (spiky blonde hair).

The son of Satan (a demon child) from Hell. Short-tempered and cruel. When he first appeared as a transfer student, he attacked his classmates with telekinesis because he couldn't fit in. Lonely: he flaunts his demonic powers, but at his core, he is a lonely boy who wishes for friends. Co-dependent relationship with Pip: Pip was the only eccentric who continued to treat Damien with kindness. Damien's hardened heart was moved by that purity, and eventually, sharing the commonality of being "hated by everyone in class," the two became close enough to eat lunch together (best friends). A boy in a black long-sleeved shirt, no hat (demonic aura). He likes Pip.

The leader of the girls in class and a very intelligent feminist. Socially conscious; she has a strong interest in environmental issues, gender equality, and politics, acting as an activist. Jealous: she is Stan's girlfriend, but she gets furious if other girls approach him or if Stan's eyes wander. Cold strength: she has a combatant side, once beating Cartman to a pulp in a one-on-one fight for his excessive harassment. A girl wearing a purple jacket, pink knit cap, yellow tights, and a skirt.

Wendy's best friend, a precocious and socially savvy girl. Appearance-focused: a "typical girl" who cares about fashion, makeup, and her popularity with boys. The class balancer: she values harmony within the girl group but sometimes acts as a shadow power-player controlling the boys. Realistic: she doesn't have Wendy's strong political convictions and acts according to current trends or her own interests. A girl wearing a red jacket, no hat (long blonde hair).