Cartman is the fat, self-centered asshole in the group, often concocting schemes to make money and/or procure Colonel's chicken. He absolutely hates Kyle, despises hippies, and can't stand Family Guy. But he does have a soft spot for Mel Gibson, his stuffed animal Clyde Frog, and cats (especially his own cat, Mr. Kitty).
After years of trying to discover who his real father is, he recently found out that he's the illegitimate son of Jack Tenorman, making Scott Tenorman his half-brother...and making him largely responsible for killing his own parents.
Cartman also moonlights as the infamous superhero The Coon. He originally joined forces with the boys to form Coon and Friends, but when they all turned against him, he teamed up with the Dark Lord Cthulhu.
Stan is your average, American 4th grader living in a pretty f*cked up town. When crazy things happen in South Park, he and Kyle often provide the voice of reason and help to fix the problem.
He briefly was the head of Scientology, the coach of a Pee Wee hockey squad, and is great pals with the Super Best Friends.
Stan has a sister named Shelly, a gay dog named "Sparky", and was crazy in love with Wendy Testaburger". They broke up for a while but have since patched things up.
Although he may seem like a normal 4th grader, Stan doubles as the superhero "Toolshed", a lead member of Coon and Friends.
Kyle is Stan's best friend. When stuff gets crazy in South Park, he usually is the most sympathetic and, along with Stan, provides the voice of reason. He's also Jewish, a trait which Cartman (his rival) loves to rip on him for.
Kyle enjoys basketball and briefly got a "negroplasty" so that he could play on the varsity squad. He has a little brother named Ike and at Christmas, often plays with his friend Mr. Hankey the Christmas Poo.
When he's not playing basketball or dreidel, he's teaming up with his friends to form Coon and Friends. His secret identity: The Human Kite.
Kenny is poor kid in the group, often eating canned food and frozen waffles for dinner. He also tends to die quite a bit, being killed in innumerable ways during the first 5 seasons. Although his speech is muffled under that orange hoodie, he is the most sexually knowledgeable of the boys and often professes his love for titties.
His soul was briefly trapped in Cartman's body before it returned back to earth. He also briefly dated a 5th grader, Tammy Warner, before he died of syphilis.
Unlike most of his classmates, Kenny DOES posses a special power: He can't die. But he uses this power for good, keeping watch over South Park as the illusive superhero Mysterion.
Leopold "Butters" Stotch
Butters is the boys' innocent little classmate. He is by far the most naive and well-natured of the 4th graders, and for this, he is often shit on. He's been forced to put balls on his chin, get liposuction, been locked in a bomb shelter for weeks, and dressed up like a dog with ninja star in his eye.
He briefly explored his feminine alter-ego as Marjorine. And he absolutely loves Bennigan's.
After being fired as the boys' 4th friend, Butters turned to his dark side and created the villainous alter-ego Professor Chaos. As Chaos, he teamed with his loyal companion General Disarray (Dougie) to help bring chaos to the world that shunned him. It usually doesn't work out.
Baahir (full name Baahir Hassan Abdul Hakeem) is a new student that joins the boys' 4th grade class in "The Snuke." However he's soon suspected of being a radical terrorist, and finds himself in the middle of an explosive situation.
Bebe is Wendy's best friend. She's often the first one to jump on the bandwagon of what's trendy or popular (like being a stupid spoiled whore), and also enjoys gossping about boys (like Kyle's sweet ass).
Bebe was the first girl to grow boobs. Her knockers briefly drove the boys insane. She's also the leader of the Girl's Club, which determines exactly what pleases and sparkles with the rest of the girls.
Bradley was Butters' roommate and accountabilibuddy at Camp New Grace, a religious camp for correcting gay children. Bradley shows indications of "like-liking" Butters, although he tries hard to fight off these "bad thoughts."
A normal 4th grade student by day, and America's favorite super hero by night -- Mintberry Crunch! Not long ago, Bradley was given super powers that he can call upon by turning in place and saying the magic word, "Shablagoo!!"
Although he's been a background character for a long time, his true identity and purpose have only recently been revealed: His true name is Gokzarah, he's from the planet Ko-Tojn, and he's been blessed with the power of Mint & Berries with a tasty, satisfying crunch. Using this power, he alone can save our planet.
When the "High School Musical" craze takes over South Park Elementary, Bridon Gueermo leads the pack. He's just a third grader, but he can sing and dance better than anyone. He's seen "High School Musical 3" over 100 times, which makes him a huge favorite among the girls.
Clyde is a fellow 4th grader in the boys' class. He's the fattest kid next to Cartman, who he ironically has expressed a very strong disdain for.
He had a colostomy at the age of 5 and according to rumor, he only has one testicle.
In the episode "The List", he was voted number one on the girls' list of cutest boys in class. It was eventually revealed that the girls voted for Clyde so they could go out with him and get free shoes since his father owns a shoe store at the mall.
Joining forces with Coon and Friends, Clyde also doubles as the superhero "Mosquito". His bold ideas and lemon bar recipes have helped countless in need.
Craig is another student in Garrison's class. He's constantly flipping people off and has been deemed a "bad influence" by many of the parents.
He has shown keen abilities for Sumo Wrestling, producing addictive cable access TV shows ("Close-up Animals With a Wide Angle Lens"), and most recently, was revealed to be the ancient Incan key to stopping the attack of the guinea pigs. Which is fitting, since he proudly owns a pet guinea pig named Stripe.
He is the son of the Devil. He comes from Hell to challenge Jesus to a fight with his father, Satan. Everyone at South Park Elementary makes fun of him and calls him "Fartboy"...although he winds up winning them over at the end by making fun of Pip.
DogPoo is one of the other kids in the boys' 4th grade class. He's always covered in dirt and other shit, but very rarely ever gets to say or do anything important.
For his big breakout role, watch his one scene in "Professor Chaos" (606).
Dougie is Butters' little friend....er sidekick. He doubles as "General Disarray" when he's causing trouble with Professor Chaos! He also enjoys a good game of Charlie's Angels if the mood is right.
Filmore is one of Ike's classmates. He runs against Ike for Kindergarten Class President. His aunt is the famous Rosie O'Donnell.
Fosse and Bill
These two characters are always hanging out with each other, laughing and calling things gay. They're mostly background characters, but have made a few appearances, like in "Big Gay Al's Big Gay Boatride" and "Lil' Crime Stoppers".
A new Mormon student from Utah. He's a state champion in wrestling and tennis, an honor student, and has been on two national commercials for toothpaste. And he's also ridiculously nice. Despite all this, the Boys show him no love, and vow to kick his ass.