Gasper is an effeminate-looking male with platinum blond hair and pinkish-violet eyes. His hair is styled in short bob cut with several small fringes over his forehead, and he has pointed ears. Kiba describes him as looking like a beautiful girl. Unlike the rest of the boys of Kuoh Academy who wear the boys' uniform, Gasper wears the Kuoh Academy girls' school uniform with thigh-high.