The story of how Mystery Inc. was formed.
Top-billed castSee full cast →
Robbie Amell
Hayley Kiyoko
Frank Welker
Garry Chalk
(unknown)
Scooby-Doo! The Mystery Begins (2009)
★ 5.3PG86 minDirector: Brian Levant
The story of how Mystery Inc. was formed.