Diary of a Wimpy Kid: The Long Haul/Scooby Doo 2: Monsters Unleashed

Cast
 * Greg Heffley as Scooby Doo
 * Rowley Jefferson as Shaggy
 * Roderick Heffley as Fred
 * Holly Hills as Daphne
 * Ashley (from Alvin and the Chipmunks: The Road Chip) as Velma
 * Agent Suggs (from Alvin and the Chipmunks: The Road Chip) as Black Knight Ghost
 * Miles (from Alvin and the Chipmunks: The Road Chip) as Tar Monster
 * Mr. Jefferson as CL Magnus
 * Mrs. Heffley as Aggie Wilkins
 * Mr. Heffley as Ruben Studdard