WARNING: SPOILERS ahead for Dexter: Original Sin episode 2.
TheDexterprequel seriesDexter: Original Sinappears to depict Dexter Morgan’s biological father, Joe Driscoll, in episode 2 “Kid in a Candy Store”. Developed byNew Bloodcreator Clyde Phillips,the prequel series chronicles a post-college Dexter as he embraces his “dark passenger"through the guidance and teachings of his adopted father, Harry. Thecast ofDexter: Original Sinis led by Patrick Gibson as the new titular protagonist alongside newcomers Molly Brown, Christian Slater, Patrick Dempsey, and Sarah Michelle Gellar.
After Michael C. Hall reprised his iconic role as the charismatic vigilante serial killer in 2021’sDexter: New Blood, he returns asDexter’s inner voice and narrator in the prequel series. The series takes place in Miami in 1991 as Dexter begins his career at Miami Metro PD.Dexter: Original Sinwill likely cover a few anticipated killsthat are already established in Dexter’s lore.Another upcoming Dexter series,Dexter: Resurrection, is expected to be released in the summer of 2025with Hall also slated to return.

Dexter’s Biological Father Is Named Joe Driscoll
It’s not entirely clear if Joe is depicted in Original Sin episode 2
Dexter: Original Sinepisode 2 appears to include a scene of Dexter Morgan’s biological father, Joe Driscoll. During a flashback with Harry Morgan as an undercover cop,Dexter’s mother, Laura Moser, deals cocaine with her boyfriend Joebefore Harry busts him on the spot. Laura tries to run away beforeHarry’s Miami Metro partner Bobby Wattsteps in to help. Harry ends up interrogating Laura and tells her that Joe is 100% going to prison, so she might as well talk.
However,it’s not entirely clear if this drug dealer Joe is Dexter’s biological father inDexter: Original Sinepisode 2. It was established in the original series that Dexter’s biological father Joe Driscoll was a former drug addict and dealer, so it could potentially be him and would make sense if it were. Joe Driscoll is not listed in the credits ofDexter: Original Sin, so there’s no way of knowing for sure if it really is him or if he’ll have a bigger role as the series continues into February 2025.

Joe was in prison and out of the picture when Laura was killed
If the drug dealer inDexter: Original Sinepisode 2 turns out to be Joe Driscoll, Dexter’s biological father, then Joe will be in prison for quite some time for dealing drugs. Joe served time in prison and was out of the picture when Laura Moser was killed, which is why Harry became Dexter’s biological father.Joe Driscoll is mentioned in Dexter season 1 and is killed by Dexter’s brother Brian Moser, the Ice Truck Killer. Dexter believed up until that point that his father died when he was a child.Dexter: Original Sincould elaborate on where Joe is while Dexter begins his vigilante serial killing career.
Dexter: Original Sin
Cast
Dexter: Original Sin explores Dexter Morgan’s early years in 1991 Miami as he transitions from student to avenging serial killer. Guided by his father, Harry, Dexter crafts a moral code and navigates a forensics internship at Miami Metro Police, all while controlling his darker impulses.