The Great Librarian, now that he's in and known, is the only Lovecraftian pup other than Nyarlathotep. He's also the only character from his videogame canon, Call of Cthulhu: Dark Corners of the Earth.

Yes, he'll be coming back on an ongoing basis. I always liked the Yithians.

I'm not gonna app anybody for a good long while, though. Don't need to, don't want to.