Dagur

Berserker chief, villain-turned-ally, and Heather's long-lost brother.

Dagur the Deranged is a character of the DreamWorks Dragons television series, voiced by David Faustino. He leads the Berserker Tribe and becomes obsessed with hunting and capturing Toothless. He is later revealed to be the long-lost brother of Heather, and after the second season of Race to the Edge he turns from villain to ally of the Dragon Riders.

Lore & Background

Dagur first visits Berk to renew the peace treaty between Berk's Hooligan Tribe and the Berserkers, and the dragons are hidden so he will not cancel it. He backs Alvin with his fleet in exchange for the Skrill, the Berserkers' emblem, then betrays him, and later invades Berk and captures Stoick. Heather pursues him for attacking her island and killing her parents. Once an ally, he rides a Gronckle he names Shattermaster and later a Triple Stryke called Sleuther, and in the sixth season he falls in love with and marries Mala.