Season 1 By day, mild-mannered Dexter is a blood-spatter analyst for the Miami police. But at night, he is a serial killer who only targets other murderers. Details Casts Videos Galleries Posters Season Lists Episode Lists Title Season 1 Genres Crime Drama Mystery Air Date 2006-10-01 Episode Runtime 00 Hours 55 Minutes Season Number 1 Episode Count On Season 1 12 Production Companies Showtime Networks, John Goldwyn Productions, The Colleton Company, Clyde Phillips Productions, Devilina Productions Michael C. Hall... Dexter Morgan... Jennifer Carpenter... Debra Morgan... David Zayas... Angel Batista... James Remar... Harry Morgan... Luna Lauren Velez... Maria LaGuerta... Julie Benz... Rita Bennett... Erik King... James Doakes... Dexter | Official Trailer | SHOWTIME Series (Trailer) Dexter | Morning Routine | Michael C. 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(2000x3000) Original Size (770x1155) Original Size (606x909) Original Size (863x1294) Original Size (683x1024) Original Size (564x752) Original Size (500x751) Original Size (2000x3000) Season 1 12 Episode(s) 2006-10-01 Season 2 12 Episode(s) 2007-09-30 Season 3 12 Episode(s) 2008-09-28 Season 4 12 Episode(s) 2009-09-27 Season 5 12 Episode(s) 2010-09-26 Season 6 12 Episode(s) 2011-10-02 Season 7 12 Episode(s) 2012-09-30 Season 8 12 Episode(s) 2013-06-30 Episode 1 2006-10-01 Dexter... Episode 2 2006-10-08 Crocodile... Episode 3 2006-10-15 Popping Cherry... Episode 4 2006-10-22 Let's Give the Boy a Hand... Episode 5 2006-10-29 Love American Style... Episode 6 2006-11-05 Return to Sender... Episode 7 2006-11-12 Circle of Friends... Episode 8 2006-11-19 Shrink Wrap... Episode 9 2006-11-26 Father Knows Best... Episode 10 2006-12-03 Seeing Red... Episode 11 2006-12-10 Truth Be Told... Episode 12 2006-12-17 Born Free...