Zamasu is a lean-built individual of fairly tall height. He has pale green skin, gray irises, white eyebrows, and white hair in the style of a mohawk. He also wears orange Potara-like earrings. Generally, Zamasu is shown to be a very calm and methodical person, as shown in combat when carefully perceiving his opponent's attack style and seamlessly countering in a fluid manner. While a man who cares for the development and prosperity of the universe, Zamasu often questioned the worth of mortals.