"Clyde is such a sneaky devil. He didn't want me to know I’d be playing Brian," he said.
One of the biggest and most thrilling surprises in Dexter: Original Sin was the return of Brian Moser, a character deeply ingrained in Dexter's lore. Fans of the original series were ecstatic to discover Brian’s presence in the prequel, though his involvement wasn’t officially confirmed until episode 8, titled "Business and Pleasure". In this episode, Harry and LaGuerta visit a Tampa police station to investigate potential suspects related to the NHI kills, revealing Brian as part of the story. However, his first on-screen appearance actually occurred much earlier—in episode 2.
Brian Moser’s Hidden Cameo in Episode 2
Brian’s initial appearance in Dexter: Original Sin was subtle and almost entirely overlooked. He was hidden among the crowd of onlookers observing Miami Metro at a crime scene—a crime he had orchestrated. This clever easter egg remained unnoticed by fans for nearly a month. Later in the same episode, titled "Kid in a Candy Store", Brian officially interacts with Dexter for the first time. He approaches him while Dexter is sitting in a restaurant waiting for his new friends. His resemblance to the original Brian Moser, played by Christian Camargo, was uncanny—fueling fan theories that this mysterious man was indeed Biney.
Roby Attal on Playing Brian Moser
In a recent post-finale interview on Pop Culture Unplugged with Elias Giannakopoulos, actor Roby Attal, who portrays Brian Moser, shared surprising behind-the-scenes details. Attal revealed that when he first arrived on set to film episode 2, he had no idea he was playing Brian Moser. Instead, he was simply cast as "Dark-Haired Man." He recounted:
“Dude, I mean, there's two avenues. Like, yes. I do [think Brian Moser is awesome]. But whether or not they were gonna be approving of my rendition of Brian, that's where—I mean, obviously, I'm biased in the negative where I always tell myself, like, there's no way people are gonna buy this. But, yeah, people seem to like it. I'm super excited about it.”
Fans went wild when they pieced together that the man speaking to Dexter in the restaurant was, in fact, Brian Moser. Even Attal himself was left in the dark about his character’s identity until the very day of filming:
“Clyde [Phillips] is such a sneaky devil. They basically didn’t want me to know I was playing Brian. So up until that day, I was kind of in the dark. My character was just named ‘Dark-Haired Man.’ So that was the first day that I shot, and we were all figuring it out at the same time that I was Brian Moser.”
Preparing to Play an Iconic Dexter Villain
Once Attal discovered he was playing Brian, he immediately dove into studying the character. He explained:
“I was super excited. The first thought was like, okay, it’s time to really dive into who Brian is, his whole backstory. It’s such a rich character. Him and Dexter are like twin flames—yin and yang, light and dark, the two wolves, that whole thing. So it was fun to dive in. I was super excited to have so much to work with.”
As a long-time Dexter fan, Attal was already familiar with Christian Camargo’s portrayal of Brian. However, he took a deeper dive into the character’s evolution to bring a younger, rawer version to life:
“I was watching it. I mean, I'm a Dexter fan. Like, yeah. I was super excited. Like, oh my god. I'm the f**ing Ice Truck Killer? I couldn't believe it.”
The Evolution of Brian Moser’s Dark Side
Throughout Dexter: Original Sin, Brian’s darker tendencies begin to emerge. He attempts to connect with Dexter while also embracing his violent nature. Attal described the challenge of portraying a younger, more chaotic version of Brian:
“In a lot of ways, it’s easier to be more chaotic. The nice thing about Brian is that he's a trickster, right? He gets off on fooling people, making them trust him. But at this age, he’s still not very good at it. That’s what they had in mind when writing young Brian—he starts off messy, chaotic. But over time, he becomes the Brian that Christian played—calm, collected, and lethal.”