Khyber is a Zaroffian mercenary and allegedly the greatest huntsman in the galaxy, who has hunted down both sapient and non-sapient beings, targeting Ben Tennyson as his greatest game. He is one of the three main antagonists for the first two season arcs in Ben 10: Omniverse, along with Malware and Dr. Psychobos, being hired by Dr. Psychobos to obtain DNA samples of predatory aliens for the Nemetrix. Following Malware's demise and Psychobos' capture, Khyber becomes a supporting antagonist in subsequent seasons, such as teaming up with Albedo and helping him in his plans for revenge during the fourth season arc, and continuing his goal of hunting Ben.