Levi has short, straight black hair styled in an undercut curtain, 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 a rather introverted person who thinks logically and practically. Ackerman is surprisingly good at strategizing, which reflects his incredible attention to detail. He is good at adapting.