 | Jay Baruchel als Hiccup Horrendous Haddock III (voice) |
 | Gerard Butler als Stoick (voice) |
 | Craig Ferguson als Gobber (voice) |
 | America Ferrera als Astrid Hofferson (voice) |
 | Jonah Hill als Snotlout Jorgenson (voice) |
 | Christopher Mintz-Plasse als Fishlegs Ingerman (voice) |
 | T.J. Miller als Tuffnut Thorston (voice) |
 | Kristen Wiig als Ruffnut Thorston (voice) |
 | John DiMaggio als Gobber's Father (voice) |
 | Kevin Michael Richardson als Thor (voice) |
| John Puglisi | Director |
| Peter Steinfeld | Writer |
| Mick De Falco | Layout |
| Simon Otto | Supervising Animator |
| Bruce Seifert | Producer |
| Bonnie Arnold | Executive Producer |
| Adam Milo Smalley | Music Editor |
| Susan Fitzer | Editor |
| Kathy Altieri | Production Design |
| Craig Ring | Visual Effects Supervisor |
| Line Korsgaard Andersen | Animation Supervisor |
| Robert Crawford | Head of Layout |
| Jonathan Null | Supervising Sound Editor |
| Cressida Cowell | Book |
| John Powell | Original Music Composer |
