Cast[]
- Paul Blart as Greg Heffley
- Lane as Rowley Heffley
- Eduardo as Roderick Heffley
- Pahud as Frank Heffley
- Divina as Susan Heffley
- Saul as Manny Heffley
- Maya as Holly Hills
- Nick as Mr. Jefferson
- Donna as Mrs. Jefferson
- Hank (from Journey 2: The Mysterious Island) as Sweetie
- Gabato (from Journey 2: The Mysterious Island) as Chirag Gupta
- Kate (from Zookeeper) as Patty Farrell
- Kailani (from Journey 2: The Mysterious Island) as Heather Hills
- Vincent as Mr. Gerabit
- Robinson as Grandpa
- Alexander (from Journey 2: The Mysterious Island) as The Craium Shaker Guy