Giant Blacksmith

The Giant Blacksmith is a character in Dark Souls. A simple but friendly being, the Giant Blacksmith offers players unique weapons upgrades. He is voiced by Daniel Flynn, who also voiced Solaire of Astora and Vamos.

Location
In Anor Londo after rotating the bridge between the Belfry Gargoyles, ascend some steps towards a large building guarded by two Sentinels and several Batwing Demons. The door on the left leads towards the Giant Blacksmith, but initially it is locked and can only be opened from the other side, which can be accessed only after clearing most of Anor Londo.

Remember to open the locked door leading back to the Sentinels, so it is easier to access the blacksmith from the other Bonfire.

Plot
The Giant Blacksmith sells a variety of useful upgrade materials as well as weapons and armor, and is the only blacksmith that can upgrade down the lightning path (by default), the crystal path (after he recieves the Crystal Ember), and make weapons from the souls of bosses. Many of the things he sells are exclusive only to him, such as Twinkling Titanite and Dragonslayer Arrows.

Lore
From the Giant Blacksmith's dialogue, it can be hinted that he had resided in Anor Londo before most of its denizens left. It does not mention much other than that, though.

The Giant Blacksmith had a friendly relationship with Hawkeye Gough. This is hinted at in finding the Hawk Ring in a chest next to him, as well as Hawkeye Gough's friendly remarks about the Giant Blacksmith.

Strategy
It's not recommended to attack him, he is very strong and the services he offers cannot be replaced. However, he is the only character to drop the Blacksmith Giant Hammer, and so must be defeated for completionists. He has the standard Giant moveset.