Willa Holland to Play Thea Queen on Arrow

The cast for Arrow continues to grow.

Already one of the most anticipated pilots of the 2012-2013 season, this CW drama will star Stephen Amell in the title role and, as announced yesterday, Katie Cassidy as the female lead.

Now, Deadline confirms Willa Holland (The OC, Gossip Girl) has signed on to portray Thea Queen, the sister of main character Oliver and someone known for getting into trouble.

Arrow is based on The Green Arrow comic book series and, while not officially picked up as a series yet, it's very hard to believe this won't find its way on to The CW fall schedule.