Flynn is the first customer introduced in Rocket Diner, and the fifth so far. He is also the first to-go-order customer introduced, before Ariel, his older sister. In contrast, Flynn is more patient than Ariel, and only orders coffee.
Flynn dons a green spacesuit with gold yellow gloves and accent on the top of it. He flies with a steel-made rocket with red accents in order for a to-go order. He is born with brown eyes, but his hair style and color is yet to be determined.