Sully the Blacksmith

Sully the Blacksmith is a boss fought midway through the repeatable DLC gauntlet mission The Bloody Harvest. He is an undead creature similar to Spycho that serves as the blacksmith of Hallowed Hallow and is needed to create the skeleton key which is required to access the lair of the Pumpkin Kingpin. T.K. Baha is oblivious to the fact that Sully is a hostile monster, speaking of him as if he were a friend both when approaching him and after killing him.