Weiss Schnee is an 18-year-old catgirl. Weiss has long white hair that is often pulled back into an off-center ponytail. She has bright blue eyes. Weiss has pale skin and is 4'11".

Weiss is a massive haughty, know-it-all, and judgy. She is irritable and confident, though also acknowledges her deficiencies and the need to hone her skills further. Her confidence and intellect often comes off as arrogance. Despite this, Weiss does show a kind demanor when needed.