Creator: Maisie Williams

You... um... really wouldn't guess to look at her that she plays an eleven year old girl.
Margaret Constance "Maisie" Williams (born April 15, 1997) is a British actress. Her only role so far outside of school theater has been as Arya Stark on the HBO series Game of Thrones. Her standout performance has received considerable acclaim, especially in light of her rather short resume, mixed with the extremely heavy material and experienced actors she's had to work with. In March 2013, it was announced she will star in the upcoming Sci-Fi Action Adventure movie We Are Monsters. She was also announced to play the lead role in the indie silent film Corvidae (look at its indiegogo entry here) and is rumored to be playing Ellie in a live-action film of The Last of Us.

Now on Twitter! (Warning: she has discovered Vine.)