Thok Rath was a Je'daii Master of the Sith species (a male individual) who served the Je'daii Order. He was stationed on Tython during the apex of the Infinite Empire's power.
Thok Rath, a Sith who exhibited sensitivity to the Force, received his training from the Je'daii Order. This training took place on the world of Tython, which is one of the nine planets comprising the Tython system, collectively known as the Settled Worlds. Rath, a renowned combatant from the Despot War, earned the rank of Je'daii Master due to his proficiency in the Je'daii practices. In 25,793 BBY, Rath, the grandfather of Je'daii Journeyer Sek'nos Rath (on his father's side), lived at the Temple of Force Skills, Qigong Kesh, with Miarta Sek, a Temple Master who was his grandson's grandmother on his mother's side.