A dead 20th century inventor that returns as a ghost, his name is Nikola Tesla. He has a full body, but it's see-through, his see-through body is Cyan colored. He has a mustache and he has no eyes due to being a ghost. He can go through things and hover/float in the air since he's a ghost. The only thing that doesn't go through him is a fellow human being, so he can touch people without going through them. His voice is echoey and ghost-like