Leviathan (Hellraiser)

Leviathan, in the Hellraiser mythology is the god of hell and lord over the cenobites, including Pinhead. Accoreding to the comics, it is obssesed with law and order, and views humans as chaotic. Because of this it uses Cenobites as it's foot soldiers against chaos and flesh. The Leviathan appears as a silver dimond emmiting a black beam of light which forces those who cross it to experiance past memories.

Hellbound: Hellraiser 2
The Leviathan allowed Julia Cotton free from hell at the same time as Doctor Channard enters hell. The Leviathan intended to use Julia to bring more souls from earth, and Channard transforms into a cenobite himself. Later when the Lamet Configuration is solved, it takes Leviathans form, consequently, the Leviathan shifts into a larger scale puzzlebox, cause the souls to flee in a rapid rate.