Gustav Larson

Gustav Larson is the son of Mr. and Mrs. Larson, and the older brother of Hildegard. He is the first notable character in the franchise to be a child. He is voiced by Lucas Grabeel.

Riders of Berk
In Gem of a Different Color, Gustav was traded by his mother to Snotlout for a "stone of good fortune" (Actually a Changewing egg). Snotlout had the boy work as his assistant, with Gustav starting to act like him. He was later ordered to return to his mother by an angry Fishlegs. He is obviously at an impressionable age. He quickly picks up on Snotlout's way of speaking and acting. With Snotlout as his role model, Gustav quickly begins to annoy the other teens. When Fishlegs orders him to return to his mother, he does so in tears. The whole ordeal of being sold and having angry dragons attack his island obviously weighed heavily on him.