Mrs. McGhoul was the owner of the McGhoul Investigator group.
Physical appearance[]
McGhoul is a short, elderly woman with gray hair tied to a bun and black square framed glasses. She wore a gray dress, white heels and carried around a cane.
Personality[]
She seemed very kind hearted and carefree, letting the gang in from the rain and giving them treats. However, she turned out to be jealous of the success in Mystery solving groups getting there attention, and she went out her way to rig up her own home with various trap doors and a dungeon to keep them captive.
History[]
Scooby-Doo! World of Mystery[]
She gladly letted the gang into her house because of the rain, except Fred do to him falling through the main entrances trap door.
They continued down the hall to the kitchen where she was asked various questions on anything wrong about her house, first being about monsters haunting the place, which she reassures that no such thing exists and the house is ordinary, they didn't notice Daphne fall through a door that slid her down a slide as they arrived at the kitchen and asked about a teacher named Professor Strudelklinger, as earlier they got a message that he was held captive at her house. She then simply brushes it off and tells her that she wasn't single and didn't want to hear anymore questions, she goes to get them some hot chocolate, until Velma fell back into another trapdoor behind her chair, McGhoul then tells Shag and Scoob to wait as she went to get some cookies, but never returned.

The failure of a mystery solver revealed.
She was discovered by the gang and the rescued teacher that she was controlling the monster, all because she wanted to go around getting rid of every Mystery solving group, so hers would finally get the chance to do it first.
Russian version[]
She created the monster disguise to haunt her own house and spread false rumors of it being a myth to bring in publicity for visitors.
Appearances[]
- Scooby-Doo! World of Mystery
- #100. Creephouse Craziness!!
Trivia[]
- In the Russian version, her name was pronounced McGhoule.