Seraphim
When most people think of Seraphim, they think of angels, but earliest usages of the term refer to serpent demons.
Shedim
In Babylonian and Assyrian religions, Shedim was a generic name like the Hebrew and Christian word spirit.
Succubus
Succubi are the female version of incubi, female demons who take the form of human women to seduce men.
Watchers/ Nephilim
According to Gen 6:1-4, these divine beings took wives from the beautiful daughters of men.
