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)