Grey's Anatomy alum Kate Walsh wed movie exec Alex Young this afternoon. Walsh wore a custom-made Monique Lhuillier wedding gown as she and Young exchanged vows at the Ojai Presbyterian Church in the town of Ojai north of LA. Among the 100 guests were Grey's co-stars Katherine Heigl, Chandra Wilson, Sara Ramirez and Justin Chambers. Kate Beckinsale and her husband also attended. A lavish reception was scheduled to follow at the Ojai Valley Inn & Spa's Casa Elar.