Wei'val the Lesser, a Sith of female gender, held a position within the Infernal Council. This council consisted of Sith who were subjugated by Soa, the Rakata warlord, and subsequently incarcerated alongside him within the Eternity Vault located on the planet Belsavis.
The character Wei'val the Lesser is featured as an adversary during the Infernal Council boss fight within the "Eternity Vault" Operation, a component of the video game Star Wars: The Old Republic. Specifically, Wei'val is present exclusively in the sixteen-player difficulty settings of this operation.