Jay Baruchel as Hiccup Horrendous Haddock III
Gerard Butler as Stoick the Vast
America Ferrera as Astrid Hofferson
Jonah Hill as Snotlout Jorgenson
Christopher Mintz-Plasse as Fishlegs Ingerman
T.J. Miller as Tuffnut Thorston
Kristen Wiig as Ruffnut Thorston
Craig Ferguson as Gobber the Belch
David Tennant as Spitelout
Kristin Chenoweth as Valka
Kit Harington as Eret
Cate Blanchett as Valka
F. Murray Abraham as Grimmel the Grisly
Auliʻi Cravalho as the voice of a character in the franchise
Nico Parker as Astrid Hofferson
Mason Thames as Hiccup Horrendous Haddock III
Gerard Butler as Stoick in the live-action adaptation