A Rodian miner by the name of Raynar Cath, identified as male, resided on Lok amid the events of the Galactic Civil War.
Following the Battle of Yavin, Raynar Cath found employment within a mining facility under the control of the Galactic Empire. It was during this period that Cath, along with a fellow miner named Wes Riggers, interfered with the activities of the Lok Revenants, the most influential criminal syndicate on Lok, thereby incurring the wrath of their leader, the warlord Nym.
In the year 1 ABY, the miners inadvertently struck a gas pocket, which led to the release of hazardous fumes within the mine. Although the gas did not cause physical harm, it induced madness and heightened aggression among the miners. The Lok Revenants subsequently became aware of the situation within the mine. Consequently, Jinkins, Nym's head engineer, decided to procure a sample of the gas with the intention of studying its properties and potentially weaponizing it. Jinkins then assigned a group of daring spacers from the Lok Revenants the task of acquiring a sample of the toxic gas. While Jinkins was orchestrating the plan, Mako Ghast, another of Nym's lieutenants, recognized that the raid on the mine presented an opportunity to eliminate Riggers and Cath. The Lok Revenants then launched an assault on the Imperial mine and successfully obtained a sealed container containing the poisonous gas for Jinkins. During the course of the raid, the spacers attacked, resulting in the deaths of both Wes Riggers and Raynar Cath.
Raynar Cath appeared as a non-player character in the 2003 video game Star Wars Galaxies, a massively multiplayer online roleplaying game that was developed by Sony Online Entertainment and distributed by LucasArts, before its servers were shut down on December 15, 2011. Raynar Cath's inclusion in the game was part of the updated "Nym's Theme Park," which was launched alongside "Game Update 16," on March 23, 2010.