Mason Thames

Hiccup

Nico Parker

Astrid

Gerard Butler

Stoick

Nick Frost

Gobber

Gabriel Howell

Snotlout

Julian Dennison

Fishlegs

Bronwyn James

Ruffnut

Harry Trevaldwyn

Tuffnut

Murray McArthur

Hoark

Peter Serafinowicz

Spitelout

Naomi Wirthner

Gothi

Ruth Codd

Phlegma

Andrea Ware

Burnheart

Anna Leong Brophy

Retcha

Marcus Onilude

Snorti

Pete Selwood

Drül

Daniel-John Williams

Fungi

Kate Kennedy

Flatula

Selina Jones

Loogi

Nick Cornwall

Hürl

Nigel Shinnors

Viking (uncredited)

Dean DeBlois

Viking (uncredited)

Randy Thom

Toothless (voice) (uncredited)