This is a sub-page of Bloodborne.
Unused NPCs#
Archibald#
Archibald is a character that is referenced in the current game as the creator of the Spark Hunter workshop. However, in an early version of the game he was an NPC that could seemingly do something with Blood Gems. He asks for powerful Blood Gems, though what he does is not known, possibly amplifying their power. It seems after some time he becomes blood-drunk and becomes hostile, possibly becoming a Lycanthrope.
Izzy#
Izzy is a character referenced in the current game as the creator of beast items. He looks up to Beast Hunters and wishes to be one of them. He's curious as to why the Hunter talks to the Doll as she doesn't talk to him. His location is unclear but it's almost certain that he was in one of the Workshops.
The Craftsman#
A Character that is an Old Man who is essentially implied to have created the Doll. It can be surmised that the Craftsman took Gehrman's place.
Slug Princess#
Seemingly an NPC that is used for dialogue testing. However, she speaks in nonsense, seemingly a made up language. Her appearance is closely related to the snail women in the Fishing Hamlet.
Picture of the Slug Princess: 
Cainhurst Library NPC#
This NPC is unknown in his purpose, however, his model is still left behind using an older version of the Healing Church's attire. He would most likely be found at the table before going atop the Cainhurst Rooftop, in the library. It is most likely why there are books all of the place. He is not the Byrgenwerth betrayer, however.
Picture of the Cainhurst NPC: 
Brandon#
Unknown, possibly Eileen before she became who she is. In early builds, the crow set is called "Brandon's Set".
Ashton#
Seemingly the name of the role of current Laurence, his name is used in the Byrgenwerth cutscene instead of Laurence.
Beta Iosefka#
A woman representing a similar proportion to the Eye Collectors in the current game. She is in the Clinic when the Hunter wakes up. She informs the Hunter about many basic early game information. A keen eye can notice that her clothing is extremely similar to Mergo's Wet Nurse, which this NPC does turn into sometime in the mid-game.
Picture of Beta Iosefka: 
Best Friend Laurence#
This Laurence is extremely vague. Laurence at this stage was the best friend of the Main Character and brings them to Yharnam to seek a cure for their affliction. However, it has been a few weeks since then and Laurence is most likely stuck in the Beast Scourge. It is quite unknown what happens to this Laurence, it is possible it did not make it far at all.
Blood-letting Beast Laurence#
This Laurence is simple, Laurence is the Blood-letting Beast in the Chalice dungeons. Given by the head in the church matches with the Blood-letting Beasts' skull and it'd make sense as to why Laurence would be in the dungeons, to seek another Cord to reach Gehrman. There is unused dialogue for the Beast's head when dead, a similar mechanic to Ludwig. However, dialogue relating exactly to Laurence is unknown. It is most likely the case that this plotline was still considered until last minute, given that the Japanese name "獣血の主" can directly be translated as "Host/Lord of the Beast Blood".
Vicar Micolash#
This Micolash a completely new NPC, first seen in possibly the Grand Cathedral, after slaying the Cleric Beast; The hunter is congratulated for liberating a Cleric called Norbert/Herbert (depends on the official subs) and realizes the Hunter is afflicted with a Nightmare. Then, sends them to Byrgenwerth through the forest of snakes. Soon it seems this Micolash goes insane slowly with Eldritch Knowledge, it is possible that he pushes the Hunter into the lake at Hemwick and then commences his Boss Fight which does not at all change.
Gremia#
At some point Gremia was a human NPC, their use is unknown.
Unused Yahar'gul NPC#
Purpose unknown, possibly linked to the three also used sacrifice NPCs.
Vileblood Drifter Leo#
Unknown use, however, his face data still exists in the game. Most likely found at Cainhurst.
Picture of Leo: 
Unused Enemies#
King of Skeleton#
Most likely basic mob, skeleton in regal clothing and a sword. Location unknown.
Shrine Knight#
Golden Knight with multiple weapons and a shield. Location unknown, however, keep in mind the structures beyond the Hunter's Dream are called "Shrines".
Burnt Warrior#
A burned most likely pthumerian who is continuously burning, location unknown, however, it is most likely an Old Yharnam enemy.
Argonaut#
A Wolf with armor, and can wield multiple weapons, however, its location and use is unknown.
Screamer#
A tiny squid-like creature. Most likely the previous Wandering Nightmare equivalent. It opened and screamed and most likely was meant to disorientate or alert nearby enemies.
Rat Hog#
Official name is unknown, however, it seems to be somewhat of an important entity. For Project Beast, its concept art was used for the game's loading screen. It is unknown what location it was designed for. It seems to just be a beast transformation.
Picture of the loading screen: 
Patient#
A large human in arm bindings and an extremely enlarged head. It's possible that they were apart of the Astral Clocktower that was going to be in the base game. It can slam its' head and it crawls using its hands.
Evil Spirit#
An older man with no arms, long white hair and a white robe. It is unknown where it was going to be, the code to load it in is still in the game meaning it almost got into the game.
Small Orphan of Kos#
Purpose entirely unknown, just a smaller Orphan of Kos model like an infant.
Demon's Fanatic#
This actually still exists as the Oedon Chapel Dweller, it was most likely a Chalice Dungeon enemy.
Amalgamations#
These also still exist in the game. The large viscera statues in Yahar'gul are these enemies with a stone texture applied to them. They are referred to as Prisoners, and the cages in Mensis held them. Guarding them were Eye collectors, who were the Jailers.
Lesser Demon#
The non-boss variant of the Lesser Demon/Creeper. Usually comes with two heads, wields a scythe. Noticeably more thin than the Boss variant.
Gun Shadow of Yharnam#
A Shadow of Yharnam with a shotgun.
Cannon Church Giant#
A Church Giant with a Cannon, most likely used in Cathedral Ward.