Cast
- Jay Baruchel as Hiccup Horrendous Haddock III (voice)
- America Ferrera as Astrid Hofferson (voice)
- Christopher Mintz-Plasse as Fishlegs Ingerman (voice)
- John DiMaggio as Gobber's Father (voice)
- Kevin Michael Richardson as Thor (voice)
- Gerard Butler as Stoick (voice)
- Craig Ferguson as Gobber (voice)
- Jonah Hill as Snotlout Jorgenson (voice)
- T.J. Miller as Tuffnut Thorston (voice)
- Kristen Wiig as Ruffnut Thorston (voice)