DEXTER Showrunner Talks Season Six Finale Shocker & Season Seven Details

Spoiler Alert: Showrunner Scott Buck reflected on the shocking season six finale for Showtime's hit crime drama Dexter, which stars Michael C. Hall, Jennifer Carpenter and Desmond Harrington; Plus he delves into some details for what to expect next season and more.

Dexter is an American television drama series that centers on Dexter Morgan (Michael C. Hall), a bloodstain pattern analyst for the Miami Metro Police Department who moonlights as a serial killer. Dexter structures his killing around "the Code of Harry", a body of ethics and procedures devised by his adoptive father Harry Morgan (who was a Miami cop) to make sure Dexter never gets caught and to ensure that Dexter kills only other killers. Harry also trained Dexter in how to interact convincingly with other people despite his dissociative mental illness, which Harry believed to be sociopathy, arising from Dexter witnessing the brutal murder of his biological mother, Laura Moser.

As an adult, Dexter has largely escaped suspicion (with some exceptions) by being genial and generous and maintaining generally superficial relationships. However, his attachment to his foster (and ultimately adoptive) sister, Debra, his girlfriend (later wife), Rita, his stepchildren, Astor and Cody, and later his biological son, Harrison, have all complicated his double life and made him question his need to kill. Ever since the series' first season, events are set in motion to show the slow but steady humanization of Dexter, progressing further with each season, as Dexter begins to experience a variety of emotions for the first time in years.

As the season finale winded down, viewers were led to believe that their favorite serial murderer had once again escaped justice as he plunges his knife into a plastic wrapped Doomsday Killer. But before the finale came to a close, Dexter's sister Deb walked into the church and witnessed first hand, for the first time, her brother in glorious serial killing action.

"It was a long time coming and we finally pulled the trigger. We’ll certainly start somewhere very close to that point addressing all these issues. We started this season one year later and we’re certainly not going to do that," said Showrunner Scott Buck and how season seven will kick off.

One of the other big reveals this season was that Deb was forced to confront her incestual love for her adopted brother Dexter. During a breakdown with her police psychologist, Deb came to the realization that she was 'in love' with her brother Dexter. Despite the siblings not being biologically related as both were adopted, it was definitely a creepy addition to the show's plot. "I find it kind of interesting that people are uneasy about Deb’s love toward her brother. That on a show about serial killers, it’s the idea of love that makes people more uncomfortable," said Buck. "We did some research on that among adopted siblings: It does exist and it does happen, and it does create a very awkward situation."

"It’s actually an idea that’s been discussed in the writers room years ago, like starting in season 2, because it always felt it — that this character was in love with her brother. And like Debra, we ignored it for a long time and it just kept coming back until we were all in agreement that it was just in the DNA of that character of why she was the way she was. It felt like it was finally time to tackle that issue."

Now that Dexter has been approved for two more seasons, which will likely consist of 24 final episodes in total, Buck confirmed that the shocking reveal in which Deb discover's her brother's dark passenger is the start of the series' endgame. "One advantage we have is we most likely have two seasons and then we’re out, so we can start working toward the end game," he said.

"We haven’t even begun to consider who the bad guys are, but we are open to changing formats. We don’t feel like we need to stick to something just because we did it in previous seasons, though at the same time we don’t feel like we can’t do something just because we have done something similar before.

"There’s only several ways we can end this show, and we all have our feelings about how it could end. There’s quite a few people involved at this point and it’s a matter of us sitting down and figuring out how this show should end. We’re all clearly heading in one direction, but that grand finale has not been decided yet."

In case you were wondering what happened with the new 'creepy' computer intern guy, Buck addressed the new character and didn't confirm whether or not he will play the role of a villain in season seven. "Well, he had no idea Dexter is a serial killer — at least, not to our knowledge. I think he’s just got this weird love-to-hate thing for Dexter and has latched onto him and is seeking his approval," said Buck. "But to send the hand like that, we have no idea what kind of message he’s sending. At this point, it’s just to arouse our suspicion about who is this guy and what are his intentions."

Check out a video clip of the shocking ending to Dexter Season Six

Dexter stars Michael C. Hall, Jennifer Carpenter, Desmond Harrington, C.S. Lee, Lauren Vélez, David Zayas, Mos and James Remar. Recurring season six appearances by Colin Hanks, Mos, Molly Parker, Billy Brown and Edward James Olmos and airs Sunday nights, exclusively on Showtime.