I was thinking and Elven Archer.  Like typical elves, they think themselves above others. he is a reluctant envoy from his race. More of a save face move on their part....until they discover the WW is smarter than they think and he has a reason why he took over that specific castle.  Suddenly the real to all the races is very apparent. 

What do you think? I can flesh out more if you have a character sheet to fill out or something. Or I could use a generic one.