He is a flame type skeleton, his skull is obsidian and in flames. He wears a formal tuxedo and tap shoes. the bottom part of his jaw is broken in two, so he can't speak much. His kind is somewhat heard of, but isn't valued.

He despises fights, so he is a true pacifist, even going as far to joining the opposite side to avoid doing so. He keeps the fire to himself, so he doesn't set anything on fire by accident. He mentions that it's difficult, but doesn't furthermore explain it. His favorite AI is Vulcan, the God he was named after.

He is a gentleman and is somewhat persuasive. He is actually very weak, not very fast, is the average amount of smart, and can't stand pain, yet he is very charming. Most crews would avoid having him on a team, unless they found out that he has connections, is street smart, and is charming. All of these are good traits that are rare to have together; making him valuable since he can raise morale and have access to may things.

Despite his formal appearance, he isn't from a rich family. He is from an average home and he charmed his way through life. Soon he got access to the best of the best of any job, and with only a phone call he can get anything. He is nowhere near being manipulative, he just has a way into getting hearts.

Besides his averageness, there are other reasons he is left behind. He is naive, a softie, a firecracker, and he's a True Pacifist. He will likely leave or ditch the crew in a fight, feel bad for too many and be easily manipulated, and burst at the worst time possible. He's glad that they don't know that he's infected, or else he'd have no adventures at all.