Kaloth is the cerebrate of the Gorgon Brood, known for his enigmatic standing within the Dark Swarm. He enjoys employing unpredictable battle tactics and choice of strains, although the Gorgon Ignilisk strain appears to be a favored shock troop in his assaults.
Kaloth acquired and revived the corpse of Alexei Stukov, the former Vice Admiral of the United Earth Directorate Expeditionary Force to the Koprulu Sector, as an experiment in terms of infesting humans as leaders of the Zerg.
Infested Stukov was observed by the Kimeran Pirates in a Terran Confederacy science facility. The Terrans there were studying zerg reanimation through infestation, and appeared to be working with or for Stukov.