Reparto

• Jay Baruchel — Hiccup (voice)
• America Ferrera — Astrid (voice)
• Cate Blanchett — Valka (voice)
• Kit Harington — Eret (voice)
• Jonah Hill — Snotlout (voice)
• Kristen Wiig — Ruffnut (voice)
• T.J. Miller — Tuffnut (voice)
• Christopher Mintz-Plasse — Fishlegs (voice)
• Gerard Butler — Stoick (voice)
• Craig Ferguson — Gobber (voice)
• Djimon Hounsou — Drago (voice)
• Kieron Elliott — Hoark the Haggard (voice)
• Andrew Ableson — Ug (voice)
• Simon Kassianides — No-Name (voice)
• Gideon Emery — Teeny (voice)