Many characters

List of Characters in ObsessOverUtopia
In order of appearance:

Carrie

Sydni

Don Patch

Ickis

Hatenko

Bloo

Flying Peen Ghost

Munchlax

Priscilla

The Sun

Lillyzard

Giroro

Kululu

Bounty Hunter James

Gir

Gray

EMO King Assistant

EMO King

Gakupo

Lazlo Germ

Edward Germ

Scout Master Lumpus Germ

Skinkman Germ

Mini Vexen

Mini Zexion

Mini Xigbar

Lilly

Hatenko's Body Cells

Carrie and Lilly's Final Form

Kid Luigi

Rocko