Tre Sana was a Lethan Twi'lek male and a resident of the planet Kalimahr in the Tython system during the height of the Infinite Empire's reign; an empire that Sana and the rest of the system's residents were ignorant to. A criminal and a rogue, Sana was an outcast whose flesh had been manipulated by Je'daii Master Dam-Powl's alchemy to become an informant. Circa 25,793 BBY, Sana came into information revealing the plans of the Stargazer Sect, to which he alerted the Je'daii and assisted them in finding and eliminating.