Summer Glau of Firefly has been added to the new FOX pilot The Sarah Conner Chronicles, a continuation of the Terminator movie series. The series begins where Terminator 2: Judgment Day left off. Glau will play a female terminator who confronts Sarah Conner and her son John in the first episode alone with a male terminator, played by Owain Yeoman (The Nine, Kitchen Confidential). Lena Headey will play Sarah Conner, and John Conner will be played by Thomas Dekker.