Jay Baruchel

Hiccup (voice)

Gerard Butler

Stoick (voice)

Craig Ferguson

Gobber (voice)

America Ferrera

Astrid (voice)

Jonah Hill

Snotlout (voice)

Christopher Mintz-Plasse

Fishlegs (voice)

T.J. Miller

Tuffnut (voice)

Kristen Wiig

Ruffnut (voice)

Robin Atkin Downes

Ack (voice)

Philip McGrade

Starkard (voice)

Kieron Elliott

Hoark the Haggard (voice)

Ashley Jensen

Phlegma the Fierce (Voice)

David Tennant

Spitelout (voice)

Randy Thom

Toothless (voice) (uncredited)