Hastur

Description
Hastur is amorphous, but he is said to appear as a vast, vaguely octopoid being, similar to his half-niece Cthylla. He also has a more monstrous form, known as The Feaster from Afar, a black, shriveled, flying monstrosity with tentacles tipped with razor-sharp talons that can pierce a victim's skull and siphon out the brain.

But Hastur has a much more recognizable form, known for its benevolence, commonly referred to as The King in Yellow.

Cult
The Carcosa Foundation is a Stockholm-based coterie that worships Hastur. Using the knowledge given by the God for their own benefits.