You can't just pick people for their hair color or the shape of their face. You have to go with the best actors.
George R. R. MartinLittlefinger: A trade envoy from Lys once observed to me that Lord Stannis must love his daughter very well, since he'd erected hundreds of statues of her all along the walls of Dragonstone. Tyrion: My lord, those are gargoyles.
George R. R. MartinWoman?” She chuckled. “Is that meant to insult me? I would return the slap, if I took you for a man.” Dany met his stare. “I am Daenerys Stormborn of House Targaryen, the Unburnt, Mother of Dragons, khaleesi to Drogo’s riders, and queen of the Seven Kingdoms of Westeros.
George R. R. Martin