Biography: ​From Wikipedia, the free encyclopedia.   Alexander Michaletos is a South-African child actor. Michaeletos (also credited as Michaletos) made his film and acting debut recently, in the 2005 film Duma, directed by Carroll Ballard. He stars as Xan, a twelve-year-old boy who befriends a cheetah called Duma, and acts with Eamonn Walker, Campbell Scott, and Hope Davis. Description above from the Wikipedia article Alexander Michaeletos, licensed under CC-BY-SA, full list of contributors on Wikipedia.