He is voiced by John DiMaggio.
After coming to throw in with Sauron, the Hammer became one of his three Dark Captains alongside the Black Hand and the Tower. Each of them represented a different aspect of their master's character, and in the case of the Hammer, he represented Sauron's martial prowess and warrior's ferocity and strength.
He was present when his leader the Black Hand murdered Talion in a ritual that bonded him to the Elven wraith Celebrimbor. This ritual also saw the violent killings of Talion's wife and son, an act that embittered him towards the Black Captains. Talion would get his revenge on all of them, and the Hammer would be the first to be targeted. Talion confronted him after wrecking havoc on Sauron's Uruk forces throughout Mordor. Though a frustrated Hammer struck down Talion's Orc ally Ratbag for his incompetence in preventing Talion's actions, and taunted Talion regarding the deaths of his family, he was ultimately unable to defeat Talion in a duel, falling to Talion's blade and being the first of the Black Captains to die.
- Though he is said to use Sauron's mace, said mace does not look like the one used by Sauron in the game, or during the Battle of the Last Alliance. However, it can be assumed that this is because the mace changed it's form to suit the needs of it's wielder (as it is confirmed that Sauron's equipment morphs and shape shifts with him).