The Ghost Clown was the disguise of Samson S. Samson.
Physical appearance
The Ghost Clown has a white face and hands, red hair and a pink nose. He wears a black hat with a pink puff on the top. His outfit consists of of red coat and pants, with an orange collar and buttons.
History
Scooby-Doo! Who's Watching Who?
The Ghost Clown resembled the old "Candy Clown" symbol of Sugarland. He was first seen during a chase. He was trapped by being hit by a hammer, knocked over by barrels, and lowered into a vat of chocolate. He was revealed to be Samson S. Samson, who wanted to use the "Ghost Scene Investigators" program, to expose Sylvester Sweetsugar, of being a "bad boss".