|This needs a stretch. (Feel free to remove when satisfied of completion.)|
* Physical appearance.
* History is incomplete.
The Skeleton Man was the disguise of Gene Haultrey.
It resembles a man in a skeleton's costume, because it was obvious that he wasn't real because of the black area between the bones.
Insert details here.
The New Scooby-Doo Movies
It was to help him conceal his identity for his cattle-smuggling operation from Don Knotts and the gang.