We don't know why the title is so similar to the Pretty Little Liars sequel, and we wish the show could be named something cooler, like Dexter: First Blood or Dexter: Dark Passenger. Fortunately, the title doesn't matter as much as the actual content of the series. The Paramount+/Showtime series follows a young Dexter Morgan as he begins a forensics internship at the Miami Metro Police Department. There, he'll meet familiar characters played by a new cast.
A major announcement was made at Dexter: Original Sin's panel at San Diego Comic-Con 2024: Michael C. Hall will narrate the inner voice of young Dexter in the prequel series. Showtime also revealed that Hall will star in a new sequel series, Dexter: Resurrection.
As the title implies, Dexter: Original Sin is all about Dexter learning to control his killer urges in a more, erm, positive way. In the original show, we learned Dex made his first human kill in 1991 when he was 20 years old. At the time, a nurse was slowly poisoning his adoptive father, Harry, and she became his first target. Although the first-season flashback episode introduced the canon, we never saw the kill.
They'll likely recreate that scene in the new show. The story picks up in 1991, when Harry was still alive, 15 years before we first met Dexter in Dexter. Harry works at Miami Metro and will help Dexter manage his Dark Passenger (which eventually leads Dex to become the Bay Harbor Butcher). That means we should also see the creation of the Kill Room and the origins of The Code, and, of course, learn more about Dexter's blood sample slide ritual.
There's ample opportunity to go into Harry's psyche here, too. We know he eventually takes his own life after witnessing Dex do his murdery stuff, so his arc could be an interesting one. After all, we've only ever known him through flashbacks and via Dexter's memory. The new show is also an opportunity to see how Dexter became so liked by his co-workers and to explore their early relationships. Maybe we'll also learn why he always brought in those donuts.
At Miami Metro, Christina Milian is the new Maria LaGuerta. In the prequel, she's establishing herself as the department's first female homicide detective. James Martinez is Angel Batista, and Alex Shimizu plays a younger version of Vince Masuka. It's still TBD if Masuka will crack the same problematic jokes, but we can't wait to hear Shimizu's take on his signature laugh.
So far, Dexter: Original Sin won't include the James Doakes character. We know Doakes worked elsewhere before joining Miami Metro, so he could appear in a future season to partner professionally and physically with LaGuerta.
Meanwhile, the first season will introduce two new characters whom Dexter will deal with at work. Bobby Watt, played by Reno Wilson, is Harry's friend, confidant, and partner at Miami Metro. And Buffy the Vampire Slayer star Sarah Michelle Gellar will be Dexter's boss, Tanya Martin, during his forensics internship.
In mid-July, Paramount+ with Showtime released a handful of first-look images to promote the show, giving us our first good look at Patrick Gibson as young Dexter Morgan, Christian Slater as Harry Morgan, and more. Check them out in the gallery below.
Fans of the original series will be relieved to know Clyde Phillips is in charge of the prequel. Phillips brought Dexter to life when the show premiered in 2006 and oversaw the writers room for four seasons, until that shocking Season 4 finale involving the Trinity Killer (John Lithgow).
But then Phillips left, and most fans agreed the show fell apart. There were multiple love interests, a weird twist involving Deb and Dex that most of us would like to forget, and time jumps that skipped over essential plot points. Then there was the finale, which threw away all the show's character development, was rushed, and concluded with an open ending that felt like a cheat.
In 2022, Phillips returned for New Blood, and although the series felt like a return to the original character, it couldn't ignore the plot points from Seasons 5 through 8. It was also polarizing because it introduced an adult version of Dexter's son, Harrison (Jack Alcott), who had his own Dark Passenger. He wasn't an instant hit with fans the way Dexter was, but thankfully, the series doled out a much more solid finale.
When Phillips helms the prequel, we can only hope he'll focus on the characteristics that made us root for a serial killer in the first place. If anyone can stay true to the characters and their journeys to becoming the ones we met in that pilot 18 years ago, it's him.
In addition, Hall will reprise the role of Dexter Morgan in a new Dexter sequel series, Dexter: Resurrection, which is expected to premiere in the summer of 2025. It's unclear how that show will work with the end of the previous Dexter sequel, 2021's New Blood. (Per Variety, Hall played coy about the logistics of his return when asked about it at San Diego Comic-Con.)
Hall is also an executive producer on Original Sin. In June, Hall sent his well wishes to the cast, crew, and production team on Instagram, saying, "I cannot wait to take the walk with all the fans down Dexter's memory lane."
There's no trailer yet, but if you want to get into a killer mood while waiting for the new series, check out the show's official Instagram page or TikTok. There, social media managers share clips from the original series highlighting some of the best and most memorable moments, as well as new art from the upcoming show.
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