Because I always find it interesting to see who the characters favor in a real life sense, I'm going to try to revive this thread.
For Benedict, Nickolaj Coster-Waldau would fit the bill perfectly if he had white hair with black tips and chops instead of a beard.
For Benedict, Nickolaj Coster-Waldau would fit the bill perfectly if he had white hair with black tips and chops instead of a beard.