
Michael C. Hall, front left, as Dexter Morgan and Lauren Velez as Maria LaGuerta in a scene from Showtime's "Dexter," appear in the undated promotional photo for Season 7, episode 12. (Associated Press)

Michael C. Hall, front left, as Dexter Morgan and Lauren Velez as Maria LaGuerta in a scene from Showtime's "Dexter," appear in the undated promotional photo for Season 7, episode 12. (Associated Press)

Showtime unveiled the first two minutes from the upcoming seventh season of “Dexter” starring Michael C. Hall and Jennifer Carpenter at Comic-Con. (Associated Press)

Showtime unveiled the first two minutes from the upcoming seventh season of “Dexter” starring Michael C. Hall and Jennifer Carpenter at Comic-Con. (Associated Press)

A house is missing part of its roof on Noble Drive in Huron Farms neighborhood of Dexter, Mich., on March 15, 2012, after a tornado hit the neighborhood. The slow-moving storm was part of a system packing large hail, heavy rain and high winds. (Associated Press/AnnAbor.Com)

Michael C. Hall (right) portrays Dexter Morgan and Julia Stiles is Lumen in a scene from the Showtime series "Dexter," which was nominated for an Emmy for best drama series. Mr. Hall also was nominated for best actor in a drama series. (AP Photo/Showtime, Cliff Lipson)

FILE-- A Feb. 16, 2010 file photo shows actress Julia Stiles at the Museum of Modern Art in New York. Julia Stiles says she loves working on the Showtime series 'Dexter," (AP Photo/Evan Agostini/file)

In this Sept. 20, 2009, file photo, actor Michael C. Hall arrives at the 61st Primetime Emmy Awards in Los Angeles. Hall was nominated for an Emmy for best actor in a drama series on Thursday, July 8, 2010, for his role in "Dexter." The 62nd Primetime Emmy Awards will be held on Sunday, Aug. 29, in Los Angeles. (AP Photo/Chris Pizzello, file)