- For the voidwalker-like race of which is a member, see voidlord. For other uses, see Void lord (disambiguation).
- Not to be confused with void god.
The void lords are monstrous entities composed of pure shadow energy who dwell within the Void, outside the borders of reality. Merciless and cruel beyond imagination, they seek only to devour all matter and energy and the universe itself. However, only the most powerful of the void lords can actually manifest in the physical universe, and only for limited amounts of time for their energies quickly seep into nothingness. They thus must consume untold amounts of matter and energy to maintain their presence.
From the moment the physical universe was born, the void lords had been watching the titans of the Pantheon. Envious of the titans' power, the void lords attempted to corrupt one of them, but the titans remained impervious to their attempts. Instead, the void lords pooled their power and hurled dark, parasitic horrors — later known as the Old Gods — out into the universe to find and exert their influence over a titan in its most vulnerable state: before it had awakened. The void lords did not know which planets contained titan world-souls, and so simply hoped that at least some of their creations would smash into a planet that contained a nascent titan.
While the Pantheon were aware of the Void's existence, they had no knowledge of the void lords or their Old God servants. Instead, they were preoccupied with another threat: demons, chaotic spawn of the Twisting Nether. As the Pantheon's greatest warrior, , hunted the vile creatures wherever he could find them, he soon learned that some demons had learned to wield Void energies. He was puzzled by this, but continued his work nonetheless. One day, however, Sargeras discovered a world-soul that had been almost completely corrupted by the Old Gods. Its surface was covered in Void energies, and the normally tranquil dreams of the nascent titan had been twisted into horrific nightmares. Sargeras ruthlessly interrogated the black world's nathrezim inhabitants, who had come to dwell amongst the Old Gods, and through them he learned of the void lords and their intentions. Enraged and anguished, Sargeras smote the demons and cleaved the corrupted world in two, instantly killing the world-soul within. It was this event that led Sargeras to abandon his brethren in the Pantheon, form the demonic Burning Legion and vow to purge the cosmos of all life — in his mind, a lifeless universe was better than one absolutely ripped apart by the Void, for he argued that if life had once taken root in the Great Dark on its own, perhaps it would do so again.
- The void lords shown in World of Warcraft: Chronicle look the same as voidcallers in World of Warcraft.
- Xal'atath calls a manifestation of the void lords, but describes him and other manifestations as "fragments, shadows, the faintest of echoes".
- How powerful the void lords are in comparison to the titans is unknown. They were described as being envious of the titans' power. The only known direct interactions between the two resulted in the void lords' failure to corrupt awakened titans. Instead, the void lords decided to go after them while they were in their most vulnerable form, when they were still slumbering world-souls, in order to create a dark titan to act as their agent due to their difficulty manifesting in the physical universe. These indicate that they may be weaker than titans while in the physical plane. However, the Pantheon believed that Azeroth would be the only titan capable of defeating the void lords once and for all, indicating that the void lords may be stronger than the Pantheon while in the Void, though still weaker than Azeroth alone.
- Void lords may need world-souls for other reasons than creating a dark titan. World-souls represent unimaginable sources of energy, which would likely counter the seeping out of a void lord's own energies into nothingness when they manifest in the Great Dark. As such world-souls would serve as anchors to the physical universe for them. was revealed through to be a manifestation of the void lords. However, he did not have a world-soul at his disposal and thus remained comparatively weak, relying on weakening the barriers between the physical world and the void and consuming matter and energy to grow in power. In this state, Xal'atath called it "the faintest of echoes", "a fragment" of a void lord's true power. Dimensius needed to constantly absorb matter and energy to remain anchored to the Great Dark Beyond, and it took him years to devour the ethereal's homeworld of K'aresh. He was also repelled by the sacrifice of a single naaru, , while attempting to devour another world. This gives some insight as to the difficulties the void lords face when attempting to manifest in the universe.