Frog Demon

The Frog Monster was the disguise of a nightmare cat in Scooby-Doo's dream.

Physical appearance
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Personality
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Scooby-Doo (DC Comics)
After a real case involving a person dressed up as a Frog Demon, Scooby-Doo had a dream about the case which turned into a nightmare about cats. Not only the Demon, but the whole gang turned out to be cats in disguise.

Appearances

 * Scooby-Doo (DC Comics)
 * Scooby Snooze