Stardust Cookie is a slim Cookie of average height. His dough is a deep obsidian with swirls of navy and he has cerulean eyes with long, white lashe. His translucent hair is mainly light purple, with dark purple in the middle. He has white bangs and two indigo swirl markings on his forehead. His shoes are white and he wears a flowing blue-black cape with indigo lining, which is cyan and sparkly underneath. Each end of his cape has a white star decoration on it. The bottom of his cape is decorated with a thick dark blue ribbon. His spiky white collar has a gold star in the middle. On occasion, he can take on the appearance of a humanoid bird form.