It has been revealed that..... dah da da dahhhhh...
Lily Collins! Will play our heroine Clary Fray in, The Mortal Instruments movies!
I personally didn't know that they were already casting so this was news to me, but I agree with the choice and think she will make a great Clary. Jace, though, has yet to make an appearance so lets keep our fingers crossed ladies!
Here is a link so you can get more information, i hope you guys agree with the choice as well!