Heather (voiced By Mae Whitman) is A mysterious teenage girl who was found by the Viking youths on Thor's Beach. Her personality very much contradicts Astrid's feisty personality, but Heather is nearly as strong and as intelligent. Although she was at first introduced as a minor antagonist due to her treachery to Berk, as well as a romantic rival to Astrid over Hiccup, her true motive, to rescue her parents from Alvin the Treacherous while helping the youths fight against the Outcasts, proved her loyalty as an ally to Berk.
Trivia
- She will see Hiccup Again in Hiccup's Adventures series, she'll even join his team.