The prequel series, which also features Patrick Dempsey and special guest star Sarah Michelle Gellar, premieres Dec. 13.

The 29-year-old Irish actor is about to go on a murder spree in Showtime's prequel series 'Dexter: Original Sin.' Luckily for him, he likes the sight of blood.

Original Sin trailer finally offered fans a glimpse at how Michael C. Hall fits into the prequel. Showtime released the first ...

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

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

The prequel series stars Patrick Dempsey, Molly Brown, James Martinez and Christina Milian, with guest star Sarah Michelle ...

The official trailer for "Dexter: Original Sin" shows the origin story of one of TV's deadliest characters. The trailer shows ...

Dexter: Original Sin is a prequel to the series Dexter starring Michael C. Hall. The original show aired from 2006 to 2013 on ...

Original Sin tells the origin story of a brilliant forensic expert-turned-serial killer Dexter Morgan. Original series ...

I ts time to get the kill room ready and break out those plastic sheets, because Dexter is officially back. Premiering on Dec ...

Original Sin begins with the final moments of Dexter: New Blood, which found the serial killer seemingly meeting his end and ...