Plagg is a small 10 centimeter (or 4 inch) tall Kwami resembling a cat. He has green eyes, cat-like ears. At his best, Plagg is carefree and easygoing. At his worst, he is negligent, overindulgent, lazy, and sour. Due to his obsession with cheese, he is very knowledgeable about different types of cheese and cheesemaking, and also knows how to mature them. Plagg can fly and Phase through objects. And he can transform the Wielder of the Cat Miraculous Ring into a Cat-themed superhero.