Diary of a Wimpy Kid: Dog Days/Scooby Doo 2: Monsters Unleashed (2004)

Cast
 * Greg Heffley as Scooby Doo
 * Rowley Jefferson as Shaggy Rogers
 * Roderick as Fred Jones
 * Susan Heffley as Daphne
 * Mrs. Jefferson as Velma
 * Captain Gutt (from Ice Age 4) as Evil Masked Figure
 * Patty Farrell as Heather Jasper Howe
 * Ian (from Alvin and the Chipmunks) as Black Knight Ghost
 * Mr. Jefferson as CL Magnus
 * Homer Simpson (from The Simpsons) as Ruben Studdard