Untirrka served as a captain within the Imperial Navy of the Galactic Empire at some point following 4 ABY. He was the commanding officer of the Imperial Patrol Craft known as the _Cutlass_. His vessel received swift orders to intercept the Argent Lady, a freighter thought to be without weapons and engaged in smuggling illegal goods. Near the second moon orbiting Sev Tok, the Cutlass caught up with the Argent Lady, firing a warning shot in front of its path and ordering the ship to shut down its systems for inspection.
Thomas Bowling conceived Untirrka for his article titled Droids Defiant, featured in Star Wars Adventure Journal 9 which was released in February of 1996. This material served as an addition to Star Wars: The Roleplaying Game developed by West End Games.