Mathayus the Scorpion King, a character now played by an American Samoan, a Filipino German, a French Canadian, and a Jewish American (and seemingly getting smaller with each incarnation) is a ruler supposedly from Mesopotamia (modern day Iraq). Now I was never one to demand the nationality of the actor match that of the character (particularly one from so long ago that there is no way to be 100% certain exactly how said character may have looked). But it might be an idea to lock down a rough appearance to hold consistent throughout your own franchise.