|This needs a stretch.|
- This page is about the comic-book story. For the fake monster, see High School Ghoul.
A ghost is haunting high-school lockers.
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- Dex (first appearance)
- Anne-Marie (first appearance)
- Principal Weathers (first appearance)
- Mrs. Harpee (single appearance)
- Students (single appearance)(miscellaneous speaking)
|Mr. Wiley||He had keys to all the lockers.|
|Mrs. Harpee||She had a hostile attitude towards the students.|
|Mr. Wiley as the High School Ghoul||He hid stolen jewels in a locker but he had forgotten which one. He wanted the kids to be scared out of looking in their lockers while he searched.|
- The gang tries to go undercover and pretend they are high-school students; they discover how far they are from contemporary kids.
- The whole gang attended Coolsville High School for at least a portion of their high-school years, and they are recognized by an old teacher who tries to give them all detention. Velma Dinkley, Shaggy Rogers, and Daphne Blake also attended other high schools (Velma's school from The Spirit Spooked Sports Show, and Shaggy and Daphne's Central High from The Crazy Carnival Caper).
- Principal Weathers, Dex, and Anne-Marie appear again in Prom Fright.
- There is a perfect Scooby-Dooby doors chase when the gang runs from the Ghoul in and out of doors to the school hallway.