Cast[]
- Jin as Thomas
- Yak Herder as Edward
- Fishlegs (from How to Train Your Dragon) as Henry
- Burnish as Gordon
- Everest as James
- Peng as Percy
- Thunk (from The Croods) as Toby
- Van Driver as Duck
- Tim Templeton and The Boss Baby (from The Boss Baby) as Donald and Douglas
- The Sandman (from Rise of the Guardians) as Oliver
- Yi as Emily
- Nai Nai as Mavis
- Sandy (from The Croods) as Rosie
- Goon Leader as Diesel
- Yi's Mother as Molly
- Dr. Zara as Daisy
- Willard Stenk (from Missing Link) as Diesel 10
- Ruffnut (from How to Train Your Dragon) as Lady
- Astrid (from How to Train Your Dragon) as Old Slow Coach
- Thunderclap (from The Good Dinosaur) as Spencer
- The Tooth Fairy (from Rise of the Guardians) as Flora
- Eep (from The Croods) as Belle
- Adelina Fortnight (from Missing Link) as Caroline
- Gran (from The Croods) as Madge