Cast[]
- Lambeosaurus as The Grinch
- Pssitacosaurus as Cindy Lou Who
- Ankylosaurus as Max
- Maisaura as Martha May Whovier
- Plateosaurus as Lou Lou Who
- Parasaurolophus as Betty Lou Who
- Diplodocus as Mayor Augustus May Who
- Iguanodon as Whobris
- Brachiosaurus as Drew Lou Who
- Tyrannosaurus Rex as Stu Lou Who
- Spinosaurus as Officer Wholihan