Entertainment Weekly has revealed that Batman: Arkham City will also feature Talia Al Ghul as one of the many characters. Stana Katic, best known for her role on the TV show Castle, will be playing Talia Al Ghul. You can see the character art in the image below.
Batman: Arkham City releases this October for the PS3, Xbox 360 and PC. It will be getting a Wii U release next year.