Queen Killer is an Old Hunter NPC that will aid players against Yharnam, Pthumerian Queen.
- Defied Chalice Dungeon, layer 2
- Defied Chalice Dungeon, layer 3, fight boss Amygdala.
- He also has an aggressive variant in the Root Chalice Dungeons.
- Once an executioner and much like Alfred, he slew a queen and gained the name. Little do we know why he is running around half naked in a cursed catacomb filled with dread and horror. He wields a cannon, this might suggest that unlike Alfred he anticipated much larger prey. Maybe, he was deployed to encounter Yharnam, Pthumerian Queen so that the School of Mensis might have the chance to have an audience with Mergo.