Olok, known as Olok the Shadow, was a male Twi'lek arms dealer who was active during the Galactic War between the Galactic Republic and the Sith Empire. Olok's products included trip mines from Balmorra, turrets built by the Gormak, neurotoxins from Quesh, and droids from Ord Mantell and Czerka Corporation. Around the time of the Conquest of Makeb, Olok arrived on the planet Darvannis to sell his wares to the gathering mercenary armies, turning the Oasis City Spaceport into a battle droid expo. During an attack on Darvannis, Olok was slain despite the aid of his activated battle droids.