Cosette appears alongside her mother as a finalist to appear in a Cheesy Poofs commercial to sing the Cheesy Poofs Theme Song. They both hope that she wins so that they can get a little food. Worried that Cosette might win, Cartman distracts them by saying that there is bread outside and when they leave, he closes the door behind them.
Cosette has messy brown hair that parted far to the right side. She wears a black beret, a white shirt, a black skirt, and black shoes. She also has a few scratches on her face and unlike most other characters, she has visible eyelashes.