Doctor Ualp Xathan, a xenoarchaeologist of the male gender, lived during the era of the Galactic Empire.
Born sometime prior to 29 BBY, Ualp Xathan was a male of a reptilian humanoid species. He built his career in the field of archaeology. Xathan penned the work One Thousand, One Hundred and Thirty-Eight Wonders of the Ancient Galaxy in 10 BBY, and it was published on Beshka by TriPlanetary Press. Ten years later, Tash Arranda, a young Human, consulted this very book while composing an essay about her visit to the planet Lorrd with her adopted uncle Mammon Hoole. In 4 ABY, Xathan, along with his assistant Fem Nu-Ar, was contracted by the Empire to locate the planet Seoul 5. After locating the planet, which was once inhabited by an ancient Human race, Xathan and Nu-Ar were imprisoned after bringing the Imperials there. Han Solo later rescued them.