The Rustov (pronounced Roost-ov) are the main villains in the JACK BLANK trilogy. These alien invaders are cybernetic parasites who latch onto organic creatures and steal their lifeforce to survive. The longer a Rustov parasite is attached to its host, the more mechanical decay the host exhibits. Skin becomes wrinkled, stretched, and thin. Bones become rusted iron, veins become cables, blood becomes oil, etc… these guys are bad dudes.