 The show has also won many awards, including two Golden Globe awards won by Michael C. Hall and John Lithgow for their roles as Dexter Morgan and Arthur Mitchell, respectively.Season four aired its season finale on December 13, 2009, to a record-breaking audience of 2.6 million viewers, making it the most-watched original series episode ever on Showtime at that time.In April 2013, Showtime announced that season eight would be the final season of "Dexter".