Dexter: Original Sin - Cast, Story & Everything We Know About The Prequel

Summary "Dexter: Original Sin" is a prequel series announced in 2024 with Christian Slater cast as Harry.

Young Dexter, played by Patrick Gibson, will grapple with his dark urges in 1991 Miami.

The show will explore Dexter's relationship with his adoptive father and sister, adding fresh twists.

The universe of Dexter continues to grow with the announcement of a prequel series, and there are already a ton of updates about the upcoming show, Dexter: Original Sin. Based on the novel Darkly Dreaming Dexter by Jeff Lindsay, Dexter debuted on Showtime in 2006 and follows the titular character who uses his forensic skills to artfully dispatch criminals who he believes weren't sufficiently punished by the legal system. With its twisting plot and intentionally gray morality, Dexter became one of the defining series of the Aughts and maintains a cult following years later.

Though the original series went off the air after 8 seasons in 2013, the Dexter franchise had already grown through the release of animated webisodes called Dexter: Early Cuts. It wasn't until the debut of 2021's Dexter: New Blood that fans were finally given a modicum of closure following Dexter's unpopular finale. Unfortunately, New Blood also proved to be divisive, but it didn't dampen the spirits of fans who still wanted more from the franchise. Now, a prequel is in the works that can finally bring back the chills, thrills, and twists of Dexter in the 2020s.

Related Dexter: Which Season The Show Started Going Bad In Showtime's popular serial-killer drama Dexter is known for its horrific ending, but the writing was on the wall long before season 8

Dexter: Original Sin Latest News

Several Major Roles Are Cast

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More than a year after rumblings began concerning a Dexter prequel, the latest news sees several characters cast in Dexter: Original Sin. Landing several notable actors for the show's key roles, Original Sin has tapped veteran performer Christian Slater to play Harry, Dexter and Deb's adoptive father who trains him in the skills he would eventually use to become a prolific killer. Young Dexter will be played by Patrick Gibson, while Molly Brown co-stars as Dexter's younger sister Deborah.

A few other clues about the series have also been revealed, and it has now been confirmed that Dexter: Original Sin will be set in 1991. Furthermore, the series will see Dexter begin his career with the Miami-Dade police force all while trying to control his murderous urges with the help of his step-father Harry's "Code". With so much of Dexter's life revealed in the original series, the prequel will need to add some new wrinkles to make things interesting.

Dexter: Original Sin Is Confirmed

The Project Was First Announced In 2023

News began to surface about a prequel to Dexter back in 2023, but little came of the original announcement until over a year later in 2024. Now, Dexter: Original Sin is in the works and will chronicle the titular character's life as a young adult. With casting underway, it's only a matter of time before the show's production timeline and release date become more clear.

Stream Dexter seasons 1-8 on Paramount+ and stream Dexter: New Blood on Prime Video and Paramount+.

Dexter: Original Sin Cast

Patrick Gibson Plays Young Dexter

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Since the show is set 15 years before the events of the original series, the cast of Dexter: Original Sin will likely be comprised of new faces. The role of young Dexter has been cast, and The OA star Patrick Gibson has been tapped to play the part originally played by Michael C. Hall. Dexter's younger sister Deb has been cast, and Molly Brown will assume the role after making a name for herself on shows like Billions. Finally, Dexter and Deb's adoptive father, Harry, will be played by veteran character actor Christian Slater.

The cast of Dexter: Original Sin includes:

Actor Dexter: Original Sin Role Patrick Gibson Dexter Morgan Molly Brown Deborah Morgan Christian Slater Harry

Dexter: Original Sin Story Details

15 Years Before Dexter

The show is set 15 years before the original and will follow the title character as he transitions from a student into a hardened serial killer

Since the show is a prequel, it was a given that it would take place before the events of Dexter, but more details of Dexter: Original Sin have been revealed. The show is set 15 years before the original and will follow the title character as he transitions from a student into a hardened serial killer. The series will see Dexter take an internship with the Miami-Dade Police Department, a move that will eventually begin his career in law enforcement.

The most important part of Dexter: Original Sin will involve the internal struggle within Dexter as he tries, and eventually fails, to control the murderous urges within him. Dexter's step-father, Harry, is the one who taught him "The Code", and that will likely be a large part of their relationship in the series. Likewise, Dexter's relationship with his sister Deb will also probably be an important thread, and Dexter: Original Sin could introduce new twists in the shocking tale of the Morgan family.