After three critically acclaimed seasons, the dark Showtime series about that lovable serial killer will return in September.  Dexter season 4 will premiere September 27 and is currently filming.In an interview with Jonathan Ross in his BBC show in the UK, star Michael C. Hall, who plays the titular character on the show reiterates that they’ve been signed for two more seasons, each with 12 episodes.  Meanwhile, Dexter executive producer Sara Colleton tells Vanity Fair that in February and March, they “spend just coming up with the idea for the season, what its themes will be, what aspects of humanity we want Dexter to butt up against, and what we want to do with the secondary characters.”

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