EPIX has canceled its half-hour comedy "Graves" after two seasons. Variety confirmed the show is over, but did not offer an explanation for why. TVLine.com said the Season 2 capper, which aired Dec. 10, now stands as the series finale. Created and executive produced by Joshua Michael Stern, Graves featured Nick Nolte as an ex-President of the United States and Sela Ward as his ambitious wife. Chris Lowell, Helene Yorke and Skylar Astin rounded out the cast. EPIX is also home to the spy thriller "Berlin Station" and the dark comedy "Get Shorty."