Jay Baruchel as Hiccup Horrendous Haddock III (voice)

Gerard Butler as Stoick (voice)

Craig Ferguson as Gobber (voice)

America Ferrera as Astrid Hofferson (voice)

Jonah Hill as Snotlout Jorgenson (voice)

Christopher Mintz-Plasse as Fishlegs Ingerman (voice)

T.J. Miller as Tuffnut Thorston (voice)

Kristen Wiig as Ruffnut Thorston (voice)

John DiMaggio as Gobber's Father (voice)

Kevin Michael Richardson as Thor (voice)