Viggo Grimborn

Viggo Grimborn is the true main antagonist in Dragons: Race to the Edge. He is the feared leader of the Dragon Hunters who wants to obtain the Dragon Eye. He is voiced by Alfred Molina.

Race to the Edge
Viggo was first mentioned by Heather when they debated as to the fate of Astrid Hofferson and her fellow dragon riders, knowing he would want them alive. Astrid told the other riders that Viggo was the true leader of the the Dragon Hunters instead of Ryker. According to Heather, he works in the shadows and everyone is afraid of him, including his brother. He was mentioned again when Ryker, Dagur, and their forces failed in attacking Dragon's Edge.

Viggo made his first appearance when he met Dagur and Heather for the first time. During the meeting, one of the hunters was discovered to have been stealing the inventory. While it appeared Viggo forgave him, the hunter was taken away to be punished. Viggo spoke to Heather alone about knowledge of a traitor among the Dragon Hunters. Seeming to believe it was Dagur, or even Ryker, he turned to Heather for help in capturing a Flightmare.

However, Viggo knew Heather was the real traitor, and used her to lure the Dragon Riders out. The Hunters were soon able to capture the Flightmare, as well as Heather and Windshear. Viggo left the game Maces and Talons on his abandoned ship, with pieces representing him, Hiccup and Heather, as a challenge for Hiccup.

While waiting for the Dragon Riders to strike, Viggo had Heather locked up, took in preparations for the Flightmare, and even played a live version of Maces and Talons with Dagur, which he won.

Viggo hid among the trapped dragons where he encounters Hiccup, who was searching for Heather. His men manage to paralyze Hiccup and Toothless, while Viggo takes the Dragon Eye. After using the Flightmare's mist to unlock the Dragon Eye, the hunters release the dragon, giving Viggo and the Dragon Hunters a chance to escape.

With the Dragon Eye back in the hands of the hunters, Viggo now sets his sites on selling or killing every dragon, including Toothless.

Personality
He knows everything there is to know about dragons, clashes with Hiccup and the riders over the Dragon Eye, which has belonged to his tribe for centuries. Unlike his brother, Ryker, he's very smart. He also gets frustrated by Ryker's lack of vision. Viggo is a master tactician, and uses his intellect to outwit his enemies.

While Hiccup is an adversary, the two of them share a mutual respect.

Role in the series
Though Viggo is a great threat, he is still unable to make contact with other worlds.