The Watchers

In the beginning, God created an order of spirits. Of these, many of the greater spirits were sent to newborn Earth to oversee it as Watchers.
the angels were crafty and deceitful, and using there power to create the OGDRU JAHAD, when night-time came, the Ogdru Jahad awoke and was instilled with purpose and function, giving birth to the Ogdru Hem

The watchful spirits, upon seeing the creation of these abominations, went to war with them. The Ogdru Hem were eventually all disposed of, with many of them barely clinging to existence in some fashion, with the Ogdru Jahad sealed by their creators in a prison of crystal and placed in the heart of the abyss. The other Watchers, however, no longer trusted their Leader the spirit known as Samyaza who was a repeated offender and was the one who convinced his brothers to conjure the beast, and so they struck him down and destroyed all his remnants, save for one: his right hand which could not be destroyed along as the Ogdru Jahad existed. After that, God looked down in fury on what had happened, and exacted his retribution on the Watchers for botching their task: they were transformed into Angelic Wraiths, their appearance, dark and shadowy.and stranded on the Earth bound by heavenly chains.

unable to be conceived by mortals, the watchers wander the earth in the search of the one who will free them from the earthly binds; The Son of the Fallen One...