User blog comment:Takeshi kun21/What is your Name?: Guide to Naming Your RWBY OC/@comment-27733843-20160204171949/@comment-8182065-20160206091854

I'd honestly go with Ethon for the spelling, since "Ethan" is solid in Hebrew, but idk you might be able to get away with Ethan.

That being said, his name works fine, even if he goes by his last name; going by his last name is more of a nickname situation.