Scooby-Doo 2: Monsters Unleashed (2004)

Doo the fright thing.

Cast

Freddie Prinze Jr., Sarah Michelle Gellar, Matthew Lillard, Linda Cardellini, Neil Fanning

Overview

After solving their last mystery at Spooky Island, the Mystery Inc. gang is back in Coolsville, where they are being honored with their very own exhibit at the Coolsonian Criminology Museum. However, when a masked villain steals costumes of classic monsters on display and brings them to life, the gang must come out of retirement to solve the case.