Several appearances of Miss Natalie Dormer from Game of Thrones. Very nice, and when you think about it, that show is Cosplay on a rather epic scale. A link about young lady #22 in the Warhammer armor and the huge amount a work it took to put it together. http://fashionablygeek.com/costumes/beau-peep-warhammer-cosplay/
Actually it's a cosplayer who just looks a LOT like Natalie Dormer.
Totally fooled me!