Nalgol was a Human of the noble Kuat family serving as captain and commanding officer of the Star Destroyer Tyrannic of the Starfleet of the Imperial Remnant some fifteen years after the Battle of Endor. He was one of four Braxant Sector Fleet officers whose Star Destroyers were chosen to serve Flim, a con-artist portraying a returned Grand Admiral Thrawn, and the plans of Moff Vilim Disra and Royal Guardsman Grodin Tierce to envelope the New Republic into a civil war over the crisis concerning the revealed Caamas Document. In order to convince Nalgol and his fellow officers—captains Trazzen of the Obliterator, Argona of the Ironhand, and Dorja of the Relentless—that Flim was Thrawn, Disra had a meeting executed where the four captains personally met with the Thrawn-apparent. Though he did