Kahesh, alternatively referred to as the Reborn, was a male Sith individual. He belonged to the Infernal Council, which was a collective of Sith who were subjugated by the Rakata warlord Soa. These Sith, along with Soa, were confined within the Eternity Vault, located on the planet Belsavis.
Kahesh's initial introduction was in the Eternity Vault Operation within Star Wars: The Old Republic. This massively multiplayer online roleplaying vieogame was launched in 2011 by BioWare.