Jirvin, a Quesoth Midli male, resided on the planet Quethold in the era of the New Republic. Serving as the supervisor for Quesoth Workers maintaining lighting systems within the Red City, Jirvin was also the sibling of Trevik. In the year 8 ABY, Jirvin, following the instructions of the alien warlord Nuso Esva, tricked Trevik into becoming a spy for Esva's adversary, Grand Admiral Thrawn. This manipulation was part of Esva's scheme to mislead Thrawn.