Dexter Boss Teases a 'Life-Altering Realization' for Deb, More Professor Gellar Mysteries

Will Deb ever discover the true identity of her vigilante/serial-killing brother? It’s the question that’s been hanging over the Showtime thriller (airing Sundays at 9/8c) for six seasons now, and in a recent interview with TVLine, showrunner Scott Buck hinted that said reveal may not be as far away as you think. The exec producer also helped unravel the mystery that is Professor Gellar and his sidekick Travis, and teased another shocking finale.

TVLINE | Deb appears to be increasingly conflicted with just about everything in her life. Is this something that continues throughout the remainder of the season?
Her journey by the end of the season will reveal some very life-altering realizations. Deb is someone who is very much a spur-of-the-moment, acting-on-every-impulse person; she’s not someone who has taken the time to peer too deeply within. [At the end of the season there] will be a circumstance in which she will finally do that; she’ll discover things about herself that she didn’t really know before.

TVLINE | In particular, Deb seems frustrated in her relationship with her brother Dexter. Will that factor into the aforementioned realization?
There’s going to continue to be strain for these two as Deb continues to examine her relationship with her brother. She’ll perhaps take a step back and look at her brother in a slightly different light…

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TVLINE | Let’s discuss the mystery shrouding Professor Gellar. The widespread theory is that he is not alive and, therefore, functioning as Travis’ version of Harry. Care to comment?
We’re trying to be a little bit different this year and not go down some of the typical paths we’ve gone. There are surprises along the way, so I don’t want to say too much about that, but [Gellar] is obviously a very important character for Dexter’s arc this season.

TVLINE | So, there’s no way I’ll get you to confirm or deny his existence?
[Laughs] By saying yes or no it will send people off in one direction or the other, so I’d rather keep them guessing about who this guy is.

TVLINE | Travis is difficult to read, though in recent weeks he seems to be coming more into his own. Are there more layers to him that will be peeled back as the season progresses?
His character is going to go through some radical changes and will ultimately surprise people very much toward the end when they see exactly who he is. He is not exactly who he seems to be, this tortured, tormented character.

TVLINE | And it’s safe to assume there is more to come between Travis and his sister?
There will be some big changes coming up between Travis and his sister, played by Molly Parker.

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TVLINE | Dexter’s secondary characters — namely Quinn, Masuka and Batista — seem to be acting out this season, treating cases and evidence  frivolously. Will their actions come back to haunt them?
These are characters who are taking steps in the wrong direction and there will be consequences for everything that they do.

TVLINE | Comparatively, we’ve seen a lot less of LaGuerta this year. Was that a plot device or a behind-the-scenes decision?
LaGuerta continues to be very important to the show. We’ve just moved her upstairs to a new position [within the precinct], but by the end of the season, she’ll prove to be even more powerful than we ever realized.

TVLINE | Should fans expect a cliffhanger finale, à la Trinity’s season, or something more closed-ended, like last year?
Our finale opens more doors than it closes.