Meet this season's 10 TV scene-stealers and scene-killers

Every TV show has a lead actor or actress — but then there's everyone else. Supporting characters may not sell the show, but they're integral to what makes a series good or bad, funny — or so, so not funny. Herewith, a slideshow of the five best and five worst supporting actors on relatively new TV shows (or, as in the case of Bobby Cannavale, in new parts on longer-running TV shows) from Danny Castellano to Sgt. Brody's son. (And yes, basically every one on "2 Broke Girls" could have made this list, but that seemed too easy.)