Rosalina is depicted as a generally wise, kind, and mature character. She has an intimate knowledge of the universe and cares deeply for the Lumas and her friends, to the point of assuming the role of mother figure for the former. Rosalina is shown to be calm and reserved, and often takes pauses when she explains how the universe works. Her voice is rather monotone, even when she is excited, and also had a reverberating effect prior to Super Mario 3D World.