Gacholoths serve as the infiltrators and terrorists of the Blood War, causing havoc and spreading panic to all sides. These master betrayers have a fondness for deceit and terror that makes them well-favored by yugoloth commanders. They may spend even centuries serving and ingratiating themselves to a baatezu or tanar'ri master, serving with the utmost loyalty, all the while planning for the best moment to torture and slaughter their supposed allies. They will not be outdone by other beings with similar talents for deception, and have an intense hatred of creatures such as succubi, erinyes, and cambions.
Gacholoths also have taken an interest in the Material plane. If given the opportunity to enter the land of mortals, they will indulge in a great reign of bloodletting, using their abilities to play with their victims like toys.