You know I love Nathan Fillion (I’ve talked to him three times now in the past 5 weeks), and every time we chat he gets me super pumped to watch any show that he’s ever been involved in.  The season finale of CASTLE airs Monday after a-n0w-extended DANCING WITH THE STARS.  In the finale, according to ABC’s official press release: “A Death in the Family” – Castle and Beckett investigate the murder of a missing plastic surgeon who is found