An invisible British kid named Millard Nullings that lives at Miss Peregrine’s Home for Peculiar Children. He’s friendly, but most are scared of him because his skin is invisible. His clothes are still visible though, and if he wants to be sneaky he can just take off his clothes and sneak around invisibly and play pranks. He’s still perfectly audible, and speaks in a child’s British accent. You can hardly hear him coming with his silent footsteps though.