Fang was a member of the Lupak, one of the many extraterrestrial species who comprise the Shi'ar Empire. The Lupak have procreated through cloning technology for thousands of generations. There are many (perhaps hundreds or thousands) of accepted genetic templates, so there are variations in appearance and even sex within the same basic forms. For untold ages, the Lupak have supplied the Shi'ar Royal Elite Imperial Guard with one of their own as a member. The Lupakite chosen to serve in the Guard is always called Fang, a hereditary warrior title, and brain-scan technology allows for basic biographical data if not actual memories to be uploaded from one Fang to the next for continuity (and through other Lupakite clone lines).

One such Fang accompanied Deathbird, sister to Shi'ar Emperor D'ken, as she led the Imperial Guard into the territory of their Kree rivals. During the mission, Fang and other Guardsmen encountered the Kree hero Captain Mar-Vell and sparred with him until learning they had a common foe: the Brood, a race that implants eggs within their victims to incubate new members of the species who ultimately transform the host's body into a Brood. Although the Shi'ar and Kree declined to pool resources, Mar-Vell ultimately vanquised the local Brood forces.[1]

When D'ken sought to master the power of the reality-altering M'kraan Crystal, the Imperial Guard served as his bodyguards and fought the X-Men and space pirates the Starjammers when they came to stop D'ken. During the fight, Fang was beaten and stripped of his costume by Wolverine, who made the uniform his for a brief time. [2]

With D'ken's defeat, his sister Lilandra ascended to the throne, but Fang transferred his loyalties to Deathbird, who had further allied herself to the Brood in her efforts to usurp the throne. When members of the X-Men alerted the Imperial Guard that Shi'ar officer Lord Samédàr was assisting Deathbird and manufacturing an excuse to destroy the Earth, Samédàr sent Fang and other Guardsmen from the Borderers grouping loyal to Deathbird to kill the X-Men and Guardsmen. However, Lilandra intervened in time to save the loyal Guardsmen and dismissed the traitors from the Guard.[3] As a "reward" for his assistance, Deathbird turned Fang over to the Brood, who made him a host. The Brood that had been Fang was killed by Wolverine.