How's this for ingenious casting: TVGuide.com has learned that actress Autumn Reeser (Complete Savages) is joining The O.C. this season as a new student rival for wait for it, wait for it Rachel Bilson's Summer. (Get it? Autumn. Summer. Oh, forget it.) Reeser's character, Taylor Townsend, will battle Summer for control of Harbor School's social scene. For more on this clash of seasons (Autumn? Summer? You're all hopeless!), check out next Wednesday's Ask Ausiello.