Keth existed as a male Twi'lek Pilgrim, residing unlawfully on Tython during the Cold War period. This era was marked by tensions between the re-emerging Sith Empire and the Galactic Republic.
Keth, a male Twi'lek, belonged to the numerous Pilgrims who, subsequent to the Great Galactic War and the Hutt Cartels' enslavement of Ryloth, accompanied Matriarch Kolovish to the world of Tython. He contributed to the founding of Kalikori village, championed Nalen Raloch, viewing him as a significant hero for protecting the pilgrims from the Flesh Raiders. Alongside Allia, Keth assisted Raloch in his quest for the Fount of Rajivari, only to discover Raloch's descent into corruption due to the very knowledge he pursued.