The 31-year-old actress will play "the enigmatically beautiful and professionally dangerous Isabel Rochev, Vice President of Aquisitions of Stellmoor International, a company looking to take over Queen Consolidated.”
Glau is best known for her roles in Fox’s "Firefly," "Terminator: The Sarah Connor Chronicles," and "Dollhouse."
"Arrow," is an action-adventure television series that centers on the classic DC Comics superhero Green Arrow. the show premieres on October 10, 2010.
Notable deaths of 2014 [PHOTOS]