Xan Kriegor is a recurring character in the Unreal Tournament series.
Over the period of the Game, Xan is always an enemy. In UT, his exact origins are unknown, as his character bio says, and some speculate he is either a robot or the CEO of Liandri in a suit. Either way, he is merciless, and has his own armor picture and taunts, only shared with Xan II. Xan II, Also in UT, is unencounterable during the campaign and has very large amounts of visible curcuitery. UT2004, Xan's last appearance, had Xan as one of the 3 unlockable characters, and shared the same body style as Axon.