|This needs a stretch. (Feel free to remove when satisfied of completion.)|
Needed: History is incomplete.
Dark Skull appeared as a humanoid with a round face and two black circles around his eyes. He wore a purple costume with white stripes.
Scooby-Doo! and the Legend of the Vampire
He and his band mates faked their disappearance a year ago because they lost the band competition. They disguised themselves as vampire versions of themselves to kidnap the bands that were competing.