Sorry for the off-topic, but recently, in the Nightmare discussion someone posted a link to this miniature site, and I explored it a bit... and stumbled upon these:

http://www.games-workshop.com/en-US/Gûlavhar-the-Terror-of-Arnor

http://www.games-workshop.com/en-US/Dweller-in-the-Dark

Are these things for real, I mean - are they referenced anywhere in the lore? Or they are just made up by the creators?

I explored that a while ago

Not canon or in the lore, made up by the creators

They're complelety non-canon.

Gulavhar was a Vampire (yes, there are vampires in Tolkien, such as Thuringwethil) who was born in the First Age.

All I can tell about Dweller in the Dark is that it's [probably] a Balrog, although I have no clue why its hand is floating. WHY?!?

There are Barlog miniatures on this site, so I don't think it's Barlog (at least in their heads).

So... Vampires in Tolkiens? Can you tell me something about them?

There are Barlog miniatures on this site, so I don't think it's Barlog (at least in their heads).

So... Vampires in Tolkiens? Can you tell me something about them?

http://en.wikipedia.org/wiki/Vampire_%28Middle-earth%29

There have been weirder things by Tolkien than vampires. In Book of Lost Tales there are talking cats that capture the great warrior Beren. Yeah, um...

I had always found interesting the existence of vampires in Middle Earth, but hadn't seen yet until now adaptations of them in other games. It seems they are normally located in Arnor and Angmar, and visually GW depicted them as sort of flying giant chupacabras. Imagine a vampire boss in this game, that'd be so cool. Hopefully this cycle, but I'd make him look more human. It's hard to interpret Tolkien's view for vampires but they could fly and drank blood, whether they were feral or intelligent is not known. But Sauron was one of them at some point, he couldn't have gone feral I assume. Anyway, seeing them in this game would be great.

They're complelety non-canon.

Gulavhar was a Vampire (yes, there are vampires in Tolkien, such as Thuringwethil) who was born in the First Age.

All I can tell about Dweller in the Dark is that it's [probably] a Balrog, although I have no clue why its hand is floating. WHY?!?

It looks like Gulavhar is non-canon by Games Workshop but we know about Thuringwethil...

EDIT: Derp, mind fart. Nevermind this.

Dweller in the dark is one of the creatures living under Moria (like nameless creature in cards). According to GW Gulavhar helped Witchking destroy Arnor, survived Angmar's fall and died hundreds years later killed by Aragorn.

EDIT: GW always referred to him as "winged demon". So I guess they didn't know what he was.

There's very little about vampires in Tolkien, other than the name itself, but it does seem that they were like giant bats or bat-like creatures, and it appears that Thuringwethil could shape-shift between different forms, so she may have been a Maia.

Ian's right: they are more like bats than Kate Beckinsale. As far as other adaptations, The Lord of the Rings Online had these bat-women called Merrevail ('black wings') that looked like this.

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Kind of a hybrid harpy/vampire thingy. People take liberties with the lore when adapting to the game.