Stardust Cookie primarily understands the cosmos, seeing stars as kindred souls that always keep him company. However, he does not understand Earthbread-bound concepts such as relationships or food snacks, and has thus only cautiously begun to explore these things for himself. He only has one true friend: A fellow extraterrestrial, Space Doughnut. Uses he/him pronouns, and is kind of shy, as he is not used to the usual lifestyle yet. He also has a sister, Moonlight Cookie.