Gorilla, and is skeptical about the jewels' existence. They follow the trail through a number of clues that the Colonel has hidden for them, which takes them to several different points in the mansion and also in the rest of the plantation. As they progress in their treasure hunt, things become harder, with numerous ghosts appearing, including the Ghost of Colonel Beauregard, the Headless Horseman, and the Skull Ghost. To make matters worse, they also have to deal with Billy Bob Scroggins and his sister Sadie Mae, the escaped Ape, and a very angry Bear, who keep showing up. On top of that, the Boo Brothers reveal themselves incapable of getting rid of any ghost, only causing more mayhem whenever they try to help. After much treasure hunting, they finally find the last clue, revealing that the treasure is hidden in the mansion's fireplace, much to the happiness of the Skull Ghost, who holds the gang at gun point, and tries to claim it for himself. After catching him, they find out that the person behind the Skull Ghost is the Sheriff. As they unmask the ghost, the real Sheriff comes in, revealing that the Skull Ghost is actually his greedy twin brother, T.J. Buzby impersonating him, as well as the remaining ghosts that were haunting the place. With the treasure found, Shaggy is taken by the Boo Brothers' story that they need a home to haunt, so he turns the mansion over to them and the treasure is put into the Beauregard Trust Fund for Orphans. Saying their goodbyes, Shaggy and the dogs drive back home. Along the way, they encounter once more the ghost of Colonel Beauregard, which Shaggy thinks is another prank of Scooby's, until he realizes it's real, and speeds away as fast as possible. Cast Don Messick as Scooby-Doo, Scrappy-Doo Casey Kasem as Shaggy Sorrell Booke as Sheriff Rufus Buzby, T.J. Buzby William Callaway as Billy Bob Scroggins, Beauregard's Ghost, Ape, Ghost in Attic, and Headless Horseman Victoria Carroll as Sadie Mae Scroggins Jerry Houser as Meako Arte Johnson as Farquard and Skull Ghost Rob Paulsen as Shreako and Dispatcher Michael Rye as Mayor Ronnie Schell as Freako and Demonstrator Ghost Hamilton Camp as Ghostly Laugh (uncredited) June Foray as Witch (uncredited) Home media The film was first released on VHS by Hanna-Barbera Home Video and Kids Klassics in the late 1980s and later on