Rosalina has light blonde hair, with one side parted to the right and covering her eye. She vaguely resembles her sister Peach, with these features distinguishing her from the former. She wears a long cyan dress, star-like earrings, and a silver crown on her head, while carrying a star shaped wand. Rosalina is shown to be protective of the Lumas, defending them when Kamek invades the Comet Observatory with the Megaleg. Like Peach, she is also a benevolent figure to the Lumas as well.