Sergeant Zonka served the Imperial Remnant as a male Human stormtrooper.
During the Galactic Civil War, Zonka was a member of Jerec's battle group. In 5 ABY, following the disappearance of Patrol 341 in the desert of Ruusan, which the group had invaded, Zonka was part of the crew of an AT-AT dispatched to investigate the planet.
The walker was under the command of a Dark Jedi, one of Jerec's apprentices, who guided the team from an AT-ST. After departing from Jerec's tower and scanning the area of Patrol 341, Yun directed them to a different location to the north, where he believed its leader had taken them. Ultimately, the walkers arrived at a peculiar pile of rocks. A company of Stormtroopers, accompanied by a pair of crawlers, disembarked. Spotting Corporal Niko Smith darting behind a rock for cover, Zonka acknowledged him with a nod. Smith voiced his displeasure about the exhaustive search across such a vast area, to which Zonka responded by reminding him of his pay and the Empire's "gratitude". The troops spread out into the rocky maze squad by squad, while Yun observed from atop the Scout.