Synopsis
Join Scooby-Doo, Shaggy and the Mystery Inc. crew as they head to Chicago for Talent Star, a hit talent show in which Fred and Daphne are finalists with some high hopes. Unlucky for them, the competition is frightful as the show is being broadcast from an opera house with a history of horrors and a particularly vengeful phantom that has cursed the show's production.
Cast

Frank Welker
Scooby-Doo / Fred (voice)

Mindy Cohn
Velma (voice)

Grey DeLisle
Daphne (voice)

Matthew Lillard
Shaggy (voice)

Isabella Acres
Emma Gale (voice)

Troy Baker
The Phantom / Lance Damon (voice)

Eric Bauza
K.J. (voice)

Jeff Bennett
Mike Gale/ Mel Richmond (voice)

Wayne Brady
Brick Pimiento (voice)

Vivica A. Fox
Lotte Lavoie (voice)

Kate Higgins
Meg Gale / Cathy (voice)

Peter MacNicol
Dewey Ottman (voices)

Candi Milo
Barb Damon (voice)

John O'Hurley
The Great Pauldini (voice)

Cristina Pucelli
Colette (voice)

Kevin Michael Richardson
Security Guard #1 / Hotel Clerk (voice)

Paul Rugg
Steve Trilby (voice)

Tara Sands
Nancy (voice)

Tara Strong
News Anchor / Donna (voice)

Travis Willingham
Waldo (voice)

Ariel Winter
Chrissy Damon (voice)
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Happy Halloween, Scooby-Doo!