Showtime’s upcoming series Dexter: Original Sin has been generating significant buzz as fans eagerly anticipate its release. As a prequel to the acclaimed Dexter series, Dexter: Original Sin aims to explore the formative years of one of television’s most complex antiheroes, and we’re here to tell you more about it.
The original series followed Dexter Morgan, a forensic expert leading a double life as a vigilante serial killer. Now, Dexter: Original Sin promises to delve deeper into the origins of Dexter’s dark persona, offering fans the chance to finally uncover more of his complex and chilling story.
So, keep reading this article to find out more about the upcoming series!
What is the Plot of Dexter: Original Sin?
Dexter: Original Sin delves into the early life of Dexter Morgan, focusing on the experiences that molded him into the meticulous killer seen in the original series.
Set in 1991 Miami, the series will chronicle Dexter’s adolescent years, shedding light on his relationship with his adoptive father, Harry Morgan. Harry’s tutelage and the ethical guidelines he instills in Dexter, known as “The Code,” become central to Dexter’s identity and actions.
Dexter: Original Sin aims to offer a deeper understanding of Dexter’s complex psyche by highlighting key moments and decisions that set him on his path.
From the traumatic events of his early childhood, including the murder of his biological mother, Laura Moser, to his growing awareness of his darker instincts, the series will provide a comprehensive exploration of the factors that shaped Dexter’s character.
The Cast of Dexter: Original Sin
Leading the cast of Dexter: Original Sin is Christian Slater (Mr. Robot, Heathers), who takes on the role of Harry Morgan, Dexter’s adoptive father and mentor.
Joining Slater is Sarah Michelle Gellar (Buffy the Vampire Slayer), playing the role of Dexter’s biological mother, and playing the role of young Dexter is Patrick Gibson, who has previously appeared in The OA and Tolkien.

Also joining the cast are Patrick Dempsey (Grey’s Anatomy, Enchanted), Molly Brown (The Good House, Lost Girls), Christina Milian (Love Don’t Cost a Thing, Resort to Love), and James Martinez (Aaron’s Blood, Gravity) amongst others.
When and Where Can You Watch Dexter: Original Sin?
Dexter: Original Sin is slated for release On 13, December 2024. Showtime has been building anticipation with teaser trailers and promotional images, most recently at San Diego Comic-Con.
It takes a village to raise a killer ???? #DexterOriginalSin premieres December 13th on the #ParamountPlus with SHOWTIME plan. pic.twitter.com/F2bsy2TQVM
— Dexter (@SHO_Dexter) September 12, 2024
Conclusion
With Christian Slater and Sarah Michelle Gellar leading a talented cast, and a premise that promises to unravel the origins of Dexter Morgan, the series is set to captivate both longtime fans and new viewers.