A gigantic, completely bald human, Commander Fosk was the ranking army officer overseeing security on the Imperial facilities on Narolax II until recently. Embittered by the necessity of his owing allegiance to the Imperial Navy and its leader, Commodore Muur, Fosk was a belligerent leader who disdained his immediate superiors whilst maintaining an almost fanatical loyalty to the Galactic Empire as a whole.
Despite being aggressive and ill-humoured, Fosk earned a reputation as an extremely effective leader of his hand-selected Crypt Company, the Stormtrooper regiment deployed to the planet. His great size did not prevent him from being an effective soldier, as his surprising athletic ability attested.
During his tenure, he maintained strict discipline through brutal means and tolerated no resistance to his personal authority. Disdainful of the Imperial Security Bureau and the Imperial Navy alike, Fosk strongly resented his enforced subservience to both. Yet, he was personally loyal to Agent Lantaru, the ISB Commandant, even though he distrusted her unit and the larger objectives of the ISB.
Perhaps because of his corporeal size, Fosk enjoyed physical combat and violence, even if he was on the wrong end of it. Largely fearless, his sadistic nature enjoyed both inflicting and receiving punishment, as his litany of scars attested. Not particularly intelligent or insightful, he was a blunt instrument of the Imperial Army. Since the recent infiltration of the facility on Narolax II, his ultimate whereabouts remain unknown.