Mr.Shagworthy is Shaggy Rogers's "Zillionare" uncle. He is one of the world's biggest jewel dealers and is voiced by Casey Kasem.
Physical appearance: An older version of Shaggy, but with a refined, well-dressed, gentlemanly appearance with brown hair; sporting a monocle and mustache.
Personality: He is described by Shaggy as being eccentric, and like his nephew, he is quite fond of his food.
History: The Scooby-Doo Show Season one: The Ghost of Merlin and his Black Knight were trying to scare him (and to steal his jewels) from his castle.
Appearances: The Scooby-Doo Show 106. Scared a Lot in Camelot