Review | Bones

Credit: Greg Gayne/FOX

AIR DATE: Thursday 12/10

It took four years, but tonight, movie darling Zooey Deschanel (500 Days of Summer) finally guest-stars on her older sister Emily's forensics drama. She plays Brennan (Emily)'s oddball cousin/holiday foil — but it's a gruesome case involving a bomber in a Santa suit that carries the message about goodwill toward all. Indeed, the cast and writers manage to hold this loopy mystery together with smarts and dark humor. And there's a bonus: Booth (David Boreanaz) strips down to his boxers! (Fox, 8 P.M.)