By Margaret Lyons
Updated July 27, 2009 at 01:57 PM EDT

Steven Spielberg’s upcoming Noah Wyle-led TNT drama is rounding out its cast. Moon Bloodgood is set to play Anne, a child therapist who becomes Wyle’s confidant following the alien invasion that kills both their spouses. Wyle plays Tom, the civilian leader of the resistance forces against alien occupiers. Jessy Schram “will play Karen, an athletic tomboy who works as a motorcycle scout,” and Seychelle Gabriel will play Lourdes, “a pretty teenager who has lost family and helps run the camp’s makeshift commissary,” according to the Hollywood Reporter. Maxim Knight will play Tom’s youngest son.