There's a new kid on the block, and he looks an awful lot like The O.C.'s Luke, and that's because he IS Luke, a.k.a. actor Chris Carmack. Chris is popping up on several episodes of DH this season, playing an accountant who also happens to be Susan's (Teri Hatcher) cousin. He initially comes by to help Susan with her taxes, but he sticks around and proves to be the key to unlocking the season-long mystery with new, mysterious neighbor Katherine. We're also hearing that Chris's DH character, Tim, will be have some pretty major, and funny, love scenes, so that's just one more reason to tune in to the show Sunday nights for the rest of the season!