okay pretty simple RPG (i think this falls under games i'm not sure) cannon characters real simple.
Lyoko Bunch:
Yumi: Me
Ulrich:
Jeremy:
Aelita:
Odd
X.A.N.A
Sissi's Group:
Sissi:
Herb:
Nicholas:
Misc.:
Theo:
Milly and Tamiya:
Jim:
Samantha:
Taelia:
Principal Delmas:
Nurse Dorothy:
Emily:
William:
Kiwi (though I highly doubt anyone would want to be Kiwi):
so just post saying who you want to be and when we have the main characters sorted out we can start