Dexter: Original Sin is a prequel to the series Dexter starring Michael C. Hall. The original show aired from 2006 to 2013 on Showtime and starred Hall as Dexter Morgan, a vigilante serial killer.

Patrick Gibson plays a young Dexter, with Michael C. Hall as his inner voice, in the prequel series 'Dexter: Original Sin.'

Showtime released the first look of the upcoming series on Tuesday, November 27, which introduced younger versions of the original Dexter cast. It also credited Hall, 53, as the “inner voice” for Patrick Gibson ‘s Dexter, who spends the entirety of the sneak peek explaining the origin for his murderous tendencies.

Christian Slater, Sarah Michelle Geller, and Patrick Dempsey co-star in the series narrated and executive produced by Michael C. Hall.

T hree years after Michael C. Hall's Dexter Morgan was iced (quite literally) at the end of Dexter: New Blood, the Bay Harbor Butcher is back back back baby — with a fresh face

While some might see this narrative trick as an attempt to make up for the original broadcast’s fuddled finale, the fading Dexter does seem to be making an earnest attempt to reconcile his past as he continues to contemplate: “In the beginning there was blood and a code I learned from my father.