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* Physical appearance; clothing.
- For the character from The New Scooby-Doo Mysteries episode, Mission: Un-Doo-Able, see Mastermind (Mission: Un-Doo-Able).
The Mastermind was the disguise of Holly Graham.
The Mastermind is a tall and very slender male, with black hair and a gray complexion.
He is Cruel, Evil, Heartless, and Dangerous. He wanted to make old monsters to scare the gang away.
Powers and abilities
Scooby-Doo! Night of 100 Frights
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