Basically, if Merlin and Arthur were girls this set is who I would want to play them....Ignore the fact that they're American actresses and the clothes are modern and not medieval ;)
Girl! Merlin: Alexis Bledel (Dark hair and Gorgeous eyes)
Girl! Arthur: Kristen Bell (a stunning blonde)
---- I have Gwen and Morgana as boys too...I might do a set about them.