Captain Orliss Gillmunn, a male Human, stands out as one of the few Jabiimi leaders who managed to survive the purge of the Jabiim Congress orchestrated by Alto Stratus.
Gillmunn gathered together those loyal to the Galactic Republic and waged war to reclaim their world. Gillmunn was under the impression that the Republic would provide unwavering support to the Jabiimi Loyalists. Nevertheless, when Republic forces ceded control of the planet to the Separatists, Anakin Skywalker, who was in charge of planetary operations, prioritized the evacuation of the Republic's clone troopers using the scarce dropships, abandoning the Jabiimi loyalists with the statement, "This is now your fight." Captain Gillmunn, feeling a sense of profound betrayal, vowed that his people would forever remember the Republic's actions. In the year that followed, amidst the ongoing conflict, he met his end at the hands of Thorne Kraym during the Massacre at High Rock Canyon.
Gillmunn was the father of Nolan Gillmunn, who would later become the leader of the Jabiimi Resistance against the Galactic Empire.