At his best, Plagg can be described as being carefree and easygoing. At his worst, he is a negligent, overindulgent, lazy, and sour. He isn't very helpful and doesn't take situations as seriously as he should. Quite the picky eater, he only enjoys eating cheese, particularly Camembert, which Adrien will feed him not only in order to fuel his transformation into Cat Noir, but also to bribe him when he's being uncooperative.