Ezno Clyvans was a male native of the planet Vrinda. He was born with a rare genetic anomaly which manifested itself as a third eye and, as per Varden tradition, was therefore made a key advisor to Farhan Tanek, the leader of the Varden faith and the planet Vrinda.
Clyvans expressed doubt that Martin Mansur was guilty of the murder of Menzala Trivere, putting him at odds with Tanek. He was soon after killed by government forces atop the Shrine to Unreason, but not before transmitting a signal on Mansur's behalf to Starfleet. (SCE eBook: Age of Unreason)