D-Void

The D-Void is a Lovecraftian extra-dimensional entity from the fictional universe of the Transformers comics by IDW Publishing, appearing as a major antagonist in the Heart of Darkness storyline. As an eldritch tentacle monster trapped in an alternate dimension, it appears to be at least partially inspired by some entities from the Cthulhu Mythos, including Cthulhu himself. 
==Background==
The D-Void is a malevolent undead entity that lives in the Dead Universe, the only inhabitant in that realm which lurks on the far side of every living world. D-Void is the personification of the Dead Universe, whose form is that of a vast mass of giant tentacles and huge eyes. It consumes other universes to satisfy its hunger and to expand the borders of the Dead Universe, giving it more life to feed upon. It is an incredibly powerful being that is able to control the minds of sentient robots, return the spark to a deceased Cybertronian, and feed on Cybertronians by draining their energy. 
His universe can be accessed by various points, all of which are related to death and decay. Anyone who crosses over from a living universe to the Dead Universe becomes undead themselves, unable to survive for long outside of the Dead Universe. D-Void itself is unable to leave the Dead Universe without external assistance, which it does by tricking sentient beings into entering his realm (e.g. a trans-dimensional portal disguised as a lake) or an aspect of it in the material universe, the Heart of Darkness (the Matrix of Leadership's dark mirror).
In its assault on Cybertron, it entranced Galvatron's Sweeps and Megatron's Decepticon forces to merged into the "Deceptigod" (All-Who-Are-One), a monstrous titan which was capable of only a single thought: to destroy. With a single sweep of its arm, it destroyed Omega Supreme's rocket section. The only Decepticons that were able to resist the summon to merge where Megatron and Shockwave, who helped hold off the colossus, while Optimus Prime and the Autobots moved against Galvatron. Megatron was able to defeat the titan.
Optimus Prime tried to stop Galvatron from using the Heart of Darkness to destroy Cybertron but actually had the planet be used as a portal into the living universe. Galvatron succeeded and D-Void arrived in the universe, only for Optimus Prime to use the Matrix of Leadership to destroy D-Void and save the universe.
==Gallery==
D-Void, possessed Transformer (IDW Comics).jpg|D-Void Possessed Nova Prime
D-Void, 2 (IDW Comics).jpg
D-Void, 3 (IDW Comics).jpg
Category:Other Supernatural Beings
Category:Extra-Dimensional Characters
Category:Characters Originating From Mythos-Inspired Works