xerath is the back-up generator

graves is the kid trying to get everyone to smoke

Lee Sin wouldn't be able to write any tests.

Vlad's the freaky kid who everyone avoids.
Singed is the kid who's always drunk.

Karthus would make a new music club.

Syndra: That one big nerd no one really likes and all the cool kids bully her, despite the fat that she's actually pretty cute. But if she's angered, she can be a mean b*tch.
Fizz: Currently being dissected in the Bio-lab.
Heimerdinger: That one geeky professor who is always absentminded, but also tells hilarious jokes.
Tryndamere: Constantly on 'roids, massive sportfreak, coined the term 'Do you even lift.' in the high school.
Viktor: That scumbag teacher everyone hates, but manages to keep his job nontheless, because... he's just a decent teacher and the school needs him.

Teemo is the mascott

Mordekaiser is the metal kid.

Mordekaiser, Sona, Yorick, Karthus and Olaf would be the most popular rock band
Akali would be the hot nurse
Katarina and Ahri would be school ****s
Jayce and Viktor would get in trouble for fighting everyday
Soraka's locker would be filled with Warwick's hair shed
Urf the Manatee would be the mascot
All yordles shouldn't even be here
Galio would insult the badass gang (Darius, Talon etc.) and become a punching bag (AOE taunt)
Rammus would literally be "They see me rollin' They hatin' (dat taunt+Q)
Wukong, Shaco and Talon would often get in trouble sneaking into the girl's locker room.
Twitch tried but got busted straight away because of the smell.
The B-ball team would consist of: Jarvan IV (captain), Darius (star player), Yi (other star player), Jayce (another star player)
Yi would also be on the track team with Blitzcrank (sprinting), Nidalee (hurdles, long distance [dem jukes] and javelin), Syndra (shotput), and Kha' Zix (long jump)

Shaco would be the class clown