- Traveling through the underground caverns, our heroes trail Pericles and company. They soon discover why they've been collecting all four keys on their final journey down to face the Evil Entity.
- First Aired: April 5, 2013 - 22 Minutes Runtime
- Frank Welker, Mindy Cohn, Grey DeLisle, Matthew Lillard
Watch Scooby Doo Mystery, Inc. Season 2 Episode 23 - Through the Curtain
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Also starring Matthew Lillard
Also starring Mindy Cohn
Watch Scooby Doo Mystery, Inc. - Through the Curtain (s2 e23) Online - Watch online anytime: Buy, Rent
Scooby Doo Mystery, Inc., Season 2 Episode 23, is available to watch and stream on Cartoon Network. You can also buy, rent Scooby Doo Mystery, Inc. on demand at Amazon Prime, Netflix, Amazon, Vudu, Google Play online.