Levi Ackerman formally referred to as Captain Levi, is the squad captain of the Special Operations Squad within the Survey Corps and is known as humanity's strongest soldier. Levi has short, straight black hair styled in an undercut curtain, he has narrow, intimidating dull gray eyes with dark circles under them and a deceptively youthful face. He is short, but his physique is well-developed in musculature. He is usually either frowning or expressionless. he has extremely calm demeanor.