Dexter: Original Sin (Season 1)

Creator: Clyde Phillips
Starring: Patrick Gibson, Christian Slater, Molly Brown, Christina Milian, James Martinez, Alex Shimizu, Reno Wilson, Patrick Dempsey, Michael C. Hall, Sarah Michelle Gellar, Brittany Allen, Raquel Justice, Jeff Daniel Phillips, Sarah Kinsey, Jasper Lewis, Aaron Jennings, Roberto Sanchez, Randy Gonzalez, Isaac Gonzalez Rossi, Amanda Brooks, Roby Attal, Joe Pantoliano
Original Airdate: 2025

★★★ (out of ★★★★)    

For those still keeping track, Showtime's Dexter ended its eight season run in 2013 with a much maligned finale before returning nine years later for its continuation, New Blood, which fans still whined about despite getting the ending they claimed to clamor for. But when plans for subsequent seasons were scrapped after Michael C. Hall's title character seemingly met his demise, it appeared we were done. That is until creator and showrunner Clyde Phillips realized the best way to ward off complaints was to ensure the series never ends again, resulting in this prequel, Dexter: Original Sin.

Taking place fifteen years prior to the start of its first season, the new series opens with the shocking revelation that our favorite serial killer/blood spatter analyst Dexter Morgan may have survived the shooting in New Blood. And now with Hall back to narrate the character's past from his death bed, there's still a direct sequel ahead with Dexter: Resurrection, as well as the proposed Trinity Killer prequel spin-off focusing on John Lithgow's murderous psychopath. 

Returning us to the show's comfortably familiar Miami surroundings for a period piece that delves deeper into how this complicated anti-hero came to embrace his "Dark Passenger," Original Sin has promise. And while the central mystery is its weakest aspect, casting and performances pick up the slack, especially one from a lead who expertly channels Dexter in all the ways you'd want from an actor playing Hall's younger counterpart. Filled with easter eggs, wonky creative choices and even some occasional retconning, it's not perfect, but builds a solid enough foundation that viewers will want to stick around for what's next.

It's 1991 and eccentric, socially awkward 20-year-old Dexter Morgan (Patrick Gibson) is hired as the newest forensic intern at the Miami Metro Police Department, where his adoptive father Harry (Christian Slater) works as a homicide detective. Keeping an eye on Dexter in hopes of curbing his increasingly dark and violent impulses, Harry also has his hands full with angry, rebellious daughter Deb (Molly Brown), who's still coping with the recent death of her mom and Harry's wife, Doris (Jasper Lewis).

Learning the ropes from unshakeable forensics chief Tanya Martin (Sarah Michelle Gellar), wise cracking analyst Vince Masuka (Alex Shimizu), fedora wearing detective Angel Batista (James Martinez) and his dad's partner Bobby Watt (Reno Wilson), Dexter joins a squad rocked by a series of child kidnappings. As Captain Aaron Spencer (Patrick Dempsey) explores a possible cartel link, he assigns Harry to keep an eye on the first female Miami PD homicide detective, María LaGuerta (Christina Milian), who's investigating a string of murders she suspects is the work of a serial killer. 

Meanwhile, Dexter's applying Harry's "code" to satiate his worst urges, targeting only society's worst criminals as he builds confidence with each new kill. But his youthful hubris and inexperience also leads to some major rookie mistakes that could get him caught, or worse. Haunted by past trauma and guilt, Harry fears losing control of his adopted son, continuing to shield Dexter from the grisliest details of a childhood he's subconsciously blocked out.

With the exception of New Blood, the original series always followed a certain formula that usually ended with the big bad on Dexter's table by season's end. And in showing how this all started, these ten episodes don't necessarily stray from that template.While remaining emotionally detached from Morgan family problems, Dexter sloppily navigates his way around as a killer, still searching for a system that works as he implements the tactics he'll later hone. 

Whether it's how Dexter chooses his victims, the first use of an Etorphine injection, the origination of his kill room, or solving the body disposal problem, this is him still figuring everything out. A few missteps alarm an already stressed Harry, who harbors major secrets of his own about Dexter's upbringing. And the childhood backstory we only heard about or saw brief glimpses of now gets a full fleshing out with '70's set flashbacks of Harry's affair with his cartel drug mole Laura Moser (Brittany Allen), mother of Dexter and older brother Brian. 

While we know how Dexter witnessing his mom's murder in that shipping container shaped him and future "Ice Truck Killer" Brian, the entire unfiltered experience is laid bare here. But the biggest revelations concern Harry, who's presented as being far more responsible for Laura's death and the brothers' evolution than we previously suspected. He's also heavily flawed and careless as a detective, developing a savior complex as his attempts to protect Laura go awry, putting her in harms way and nearly destroying his own marriage.

Since James Remar's version of Harry only appeared in brief flashbacks and as an apparition during the classic series, it's unfair to compare his take to Slater's since both serve entirely different purposes. But Slater's tremendous, making few attempts at directly imitating what Remar did as a father and cop torn apart by the guilt of failing his family. Though the writers have Harry make unbelievably incompetent mistakes, Slater's has it covered, shedding light on why he's so protective of Dexter and obsessed with shielding him from the truth about his past. In this sense, Harry's "code" to curb Dexter's darkest urges is also an effort to shield his own shortcomings, rationalizing that if he couldn't save Laura, there's still hope for her son. Or at least one of them.

Learning what not to do as Harry breathes down his neck, Dexter fumbles his way through the killings of a murderous nurse (Tanya Clarke), loan shark (Roberto Sanchez) and mob hitman (Joe Pantoliano), all of whom have left innocent victims in their wake. As Dexter, Patrick Gibson's brilliant, adapting portions of Hall's detached approach while simultaneously providing a blueprint for what we know will follow. 

With Dexter still lacking a full understanding of himself or his capabilities, it's all about not screwing up as a skeptical Harry hovers over him. But Gibson's even better at depicting Dexter's awkwardness in social situations, displaying some great comedic timing as he navigates a relationship with Deb's best friend Sofia (Raquel Justice) or clumsily attempts to endear himself to co-workers.

Because Jennifer Carpenter was so physically distinctive as Deb, they were never going to fill that part with her doppelganger, leaving Molly Brown to turn the volume up in incorporating the character's various personality quirks. Reeling from her mom's death, the anger and swearing is off the charts as she seethes at all the attention Harry gives Dexter. And with the two now suddenly working together, she's never felt more invisible, causing her to rebel by dating the older Gio (Isaac Gonzalez Rossi), who talks a smooth game, but might be trouble.

Unfortunately, Deb's subplot with Gio amounts to less than expected, sort of fading away without any concrete resolution. Despite that, Brown brings sass to the part, excelling most in the moments she vulnerably displays concern and affection for her "weirdo brother." It's through this, her strained bond with Harry and a series of personal roadblocks, that the seeds are planted for a future career in Miami homicide. 

The rest of the cast is uniformly strong, as Shimizu and Martinez are dead ringers for younger incarnations of Masuka and Batista, while Christina Milian gives the season's most underrated turn as the no-nonsense LaGuerta, eerily capturing previous actress Lauren Vélez's demeanor and inflection. Her feud with Dempsey's Captain Spencer is an ongoing thread, with him thoroughly insulted someone so publicly critical of the department would be brought in to undermine him. Besides helping to explain how LaGuerta became the hardheaded boss we know, it also sheds some light on her noticeably different treatment of the Morgan siblings.

Whenever any character pops up in a prequel who wasn't in the original there's wild speculation about why they weren't. And the more recognizable the star, the crazier these theories get. So as much as the writers try to distract us from it, it's impossible to ignore the presence of billed guest star Sarah Michelle Gellar as Tanya Martin, or stop wondering what her overall purpose is. 

Unfortunately, they do so little with Gellar it's almost as if whatever plans were in place for her character got completely scrapped. As a result, we're left wondering what could have been, especially since she steals every scene she's in as a dry, sarcastic forensics expert who actually shares a lot in common with Dexter. The possibilities seemed endless, so while Tanya's influence is still felt in some choice scenes, it's a missed opportunity they won't get back since Gellar's now attached to a Buffy reboot.    

It's somewhat ironic that everything involving Dexter perfecting Harry's code and finding his sea legs as a vigilante is more engaging than the season's big arc involving the murdered and kidnapped kids. Once the perpetrator is revealed, you'll start counting down the minutes until Dexter closes in, but not before the writers jump through hoops to avoid explaining too many details of the killer's convoluted plan.

When it's all over, there are lingering questions you're forced to kind of just let slide, mainly because Harry and LaGuerta's side hunt for the NIH killer so quickly overtakes the main case in interest. More directly tied to what Dexter was and who he'll eventually be, it also provides a further glimpse into Harry's motivations with a surprising twist that skillfully sets the stage for forthcoming seasons. 

Despite some messiness getting there, this does finish on a strong note, with the added benefit of an early 90's milieu and soundtrack that really captures the period's specificity. Narratively and stylistically faithful to its predecessor, it also updates the show's iconic opening title sequence by cleverly incorporating the supporting players into Dexter's superficially tedious, but sinister morning routine.

The advantage of Dexter's origin story being this heavily expanded upon can be a handicap when loyal viewers pick apart every detail, carefully hunting for inconsistencies. But with so many clever callbacks, it's a real trip seeing the his formative years depicted in such detail, prompting us to rethink popular theories. And if this is any indication, the Dexter franchise shows no signs of slowing down, evolving into a full blown multiverse with a shelf life as long as the character himself.