Named for his taciturn appearance on the field of battle, Thorghir was a member of Berek Thunderfist's Wolf Guard. He was cut down by 10 Howling Banshees when leading a counter-attack against an Eldar warhost. Despite his wounds, he somehow survived and was encased within a Dreadnought so that he could continue to serve the Chapter. He still carries his favoured weapon from his days of flesh - a fearsome Assault Cannon.
From a tabletop point of view, his highlight has been a Rocky II -esque moment when an Ironclad and Thorghir managed to take each other out in the same round of combat.