demonic butler of the Phantomhive household,Sebastian appears as a tall,handsome adult,Black hair, Reddish brown eyes,Pale skin,Black fingernails,Sebastian's typical outfit includes Black trousers & A tailcoat & A vest with the Phantomhive Crest & A black tie,Sebastian wears white gloves to conceal the mark of his Faustian contract with Ciel Phantomhive on his left hand,His eyes change color from deep, dark red to crimson when he is in demon mode,Sebastian is 6.1 feet tall,no one knows his age.