L. Lawliet is a slim, pale, tall man, he has messy black hair at a neck length. He has black eyes and eyebags to match, his usual attire is blue jeans and a white jumper. He always goes barefoot, even in public. He is secretive, obsessive, caring, cold, gentle, calm, childish, introverted, antisocial, nervous, shy, timid, joking, funny, quiet, numb and loving. He is also an insomniac with a major sweet tooth.