Note on the characters:
There are about 54 people in this story, and some of them have only appeared in the show once. I'll just give you a quick rundown of the list of characters here before the story begins in case you're wondering where all of these characters came from. If not, feel free to skip this entirely.
Annie - blonde curly haired girl in the main class. Was everywhere in "Elementary Scool Musical."
Bebe
Brad Dixon - fan name for the kid with the blue hat and the yellow stripe along the bottom.
Bradley - first appeared in "Rainforest Schmainforest." Part of the choir.
Bridon - from "Elementary School Musical."
Butters
Christophe
Clyde
Craig
Damien
Dylan - goth kid with the red hair.
Cartman
Esther - black haired girl in the class with the light blue shirt.
Ferrari - one of the Raisins girls. (The new one)
Filmore - kid in Ike's class who was running for class president in "Trapper Keeper."
Flora - kid in Ike's class who can't make up her mind on who to vote for in "Trapper Keeper."
Francis - in a few episodes as a bg character. He was a Jew-scout in "Jewbilee."
Gary - Mormon kid in "All About Mormons."
Gregory
Heidi - had the sleepover in "Marjorine."
Henrietta - the only female goth kid.
Ike
Jason - Has been in it from episode 1. Part of Craig's group in "South Park is Gay."
Josh - Was in "Toilet Paper." The kid in the jail cell.
Karen - Kenny's sister.
Kenny
Kevin Chambers - youngest goth kid.
Kevin McCormick - Kenny's brother, obviously.
Kevin Stoley - The nerdy Star Wars kid. Part of Cartman's group in "Fatbeard."
Kip - "You Have 0 Friends."
Kyle
Lexus - one of the Raisins girls. (The one Butters liked)
Liz - takes part in the sled races in "Cartman's Silly Hate Crime 2000." Has a pink outfit.
Lola - paired with Token in "Follow That Egg." Also a list maker in "The List."
Mark - home schooled kid in "Hooked on Monkey Phonics."
Mercedes - one of the Raisins girls. (The blonde one)
Millie - blondish hair with pigtails. Was at Heidi's sleepover in "Marjorine."
Nelly - list holder in "The List."
Patty Nelson - Cartman said he fantasized about her in "Le Petit Tourette."
Pip
Porsche - one of the Raisins girls. She tried to cheer Stan up. (black hair)
Rebecca - home schooled girl in "Hooked on Monkey Phonics."
Red - Made out with Stan in "Stupid Spoiled Whore Video Playset." Is in the bg a lot.
Sally - Looks like Red but has a clip in her hair. Was paired with Kenny in "Follow That Egg,"
Scott Malkinson - "Elementary School Musical." He's the kid with a lisp and diabetes.
Scott Tenorman
Shelley
Stan
Thad - "Guitar Queer-o."
Thomas - kid with tourettes in "Le Petit Tourette."
Token
Tweek
Wendy