Levi has short, straight black hair styled in an undercut curtain, as well as narrow, intimidating dull gray eyes with dark circles under them and a deceptively youthful face. He is quite short, but his physique is well-developed in musculature from extensive vertical maneuvering equipment usage. He is usually either frowning or expressionless; that, plus his extremely calm demeanor, often makes it difficult for others to guess what he is thinking.