‘Dexter’ Prequel Cast Revealed for Showtime Series

A new cast will learn Dexter Morgan’s Code.

Patrick Gibson (Shadow and Bone), Christian Slater (Mr. Robot) and Molly Brown (Senior Year) have been tapped to star in Dexter: Original Sin, a prequel to Showtime’s Dexter.

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Originally ordered to series in February 2023 and titled Dexter: Origins, Original Sin is set in 1991 Miami and revolves around Dexter (Gibson) as he goes from student to avenging serial killer. With guidance from his father, Harry (Slater), Dexter adopts a Code designed to help him find and kill people without being discovered by law enforcement at the same time as he begins a forensics internship at the Miami Metro Police Department.

Original Dexter showrunner Clyde Phillips, who returned to finish off Michael C. Hall’s on-screen journey as Dexter in the 2021 limited series Dexter: New Blood, will serve in the same capacity on Original Sin.

Exec producers include Phillips, Hall, Scott Reynolds, Mary Leah Sutton, Tony Hernandez, Lilly Burns and Robert Lloyd Lewis. Michael Lehmann, who worked with Slater when he directed 1989’s Heathers, will serve as directing exec producer.

Gibson, who takes on the role originated by Hall, counts Shadow and Bone, The OA, Good Girl Jane and Property of the State among his credits. He’s repped by Gersh, Range Media and Felker Toczek.

Slater, who plays the same character that James Remar had in the original Dexter, also counts Dr. Death, Dirty John, True Romance, Unfrosted and The Spiderwick Chronicles among his credits. He’s represented by UTA and Untitled Entertainment.

Brown, who will play Dexter’s sister, Debra Morgan — originally portrayed by Jennifer Carpenter — counts roles in Evil, Billions and The Marvelous Mrs. Maisel. She’s with Buchwald and Authentic Talent and Literary Management.

Former Showtime boss Gary Levine will supervise the show’s creative alongside Urooj Sharif for Showtime Studios, with Tara Power overseeing production.

A premiere time frame for Dexter: Original Sin has not yet been revealed.

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