Sebastian takes on the appearance of a tall and handsome male adult with black hair and red eyes. He typically dresses in an outfit, which is black trousers, a tailcoat, vest with the Phantomhive Crest on his shirt cuffs and a black tie. He also sports a pocket watch with a chain and a chained silver lapel pin bearing the Phantomhive Crest, traditionally worn by the house's head butler. His white gloves conceal the mark of his Faustian Contract with Ciel Phantomhive on his left hand.