Que Horrifico

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Que Horrifico
Vital Statistics
Gender Male
Hair color White
Eye color Red
Other Statistics
Identity Mary Anne Gleardan
Reason To take over the town
Powers and abilities Spookify and control children
Production Details
First appearance SDMI: The Song of Mystery
Played by Grey DeLisle

Que Horrifico was the disguise of Mary Anne Gleardan.

Physical appearance

Que horrifico

Que Horrifico costume.

He wears a Mayan mask, a Mexican pancho over wrappings which cover his pale skin.

Powers and abilities

Que Horrifico can play his musical instrument and order spookified kids into doing his bidding.


Scooby-Doo! Mystery Incorporated

Season one


Mary Anne Gleardan unmasked.

Mary Anne Gleardan learned of the legend of Que Horrifico (in English, "How Horrific") from an advanced class in Mayan mythology she took from Dr. Luis de Potrillo. The legend told of a man who turns into a monster at night, and by playing the pan flute he can turn children into monsters.

She used this legend to try to take over the town. Bribing children with promises of candy once she took over, she got them to put on monster masks and act wild when they heard her playing the pan flute. This got the town believing in the curse of the monster, and many parents left town, leaving their "spookified" children behind.

Mystery Inc. investigated and set up a fake household as a trap. Que Horrifico attacked, but the children she commanded abandoned the fight when a cartoon they liked came on television.

Mary Ann was caught; and she would have gotten away with it, if it wasn't for those Hometto Boys Cabuela (which loosely translated meant 'meddlesome kids' in Latin).

Sheriff Stone arrested and handcuffed Mary Ann. She told Sheriff she was just a kid, but he said she deserved it because of all the Que Horrifico merchandise that was going to go to waste. (The Song of Mystery)



"What are you doing? Attack them!"

"You fools! You're ruining everything!"

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