Who Plays Demetri In Cobra Kai?

Demetri from 'Cobra Kai' has this lanky, awkward charm that makes him stand out, and his height plays into that perfectly. From what I've observed across the seasons, the actor, Gianni Decenzo, is around 5'8" or 5'9", which fits Demetri's underdog vibe. He's not towering over others like some of the more intimidating characters, but he's not short either—just that relatable middle ground. It's funny how his height subtly reinforces his journey from bullied kid to someone who finds his own strength. The show does a great job using physical traits to mirror character arcs, and Demetri's stature is no exception. What's cool is how his height never defines him, though. Even when he's getting pushed around early on, it's his wit and growth that shine. By Season 4, when he starts holding his own in fights, you forget about his build because his confidence takes center stage. That's what makes 'Cobra Kai' so satisfying—it turns perceived weaknesses into strengths. Demetri’s height? Just another detail that makes him feel real.

Demetri's decision to join Cobra Kai in season 3 was a messy, emotional whirlwind, and honestly? It made perfect sense for his character. After getting bullied relentlessly by Hawk and the other Cobra Kai kids, he was desperate for a way to protect himself. Miyagi-Do’s pacifist approach wasn’t cutting it—he needed something more aggressive, something that’d make him feel powerful for once. Cobra Kai’s 'strike first' mentality was toxic, sure, but it also gave him the confidence boost he craved. What really sold it was his rivalry with Hawk. That betrayal cut deep, and seeing his former best friend turn into a full-blown Cobra Kai zealot pushed Demetri over the edge. He didn’t just want to defend himself; he wanted to win. Kreese’s manipulation played a part too—he preyed on Demetri’s anger and insecurities, twisting them into loyalty. By the end of the season, you could see the conflict in his eyes—he knew Cobra Kai was bad news, but the thrill of finally being on the 'strong' side was addicting.

Demetri is one of those characters who just sticks with you. He's the underdog who grows into his own, and I love how the show balances his sarcasm with genuine heart. From what I know, Demetri isn't based on a real person—he's purely a creation of the writers, though his personality feels so relatable. Maybe that's why fans connect with him so much; he embodies that awkward yet endearing phase we've all been through. The show does a great job of blending nostalgia with fresh storytelling, and Demetri's arc is a big part of that. His dynamic with Eli ('Hawk') is one of the most compelling friendships-turned-rivalries in the series. While the character isn't inspired by a real-life figure, his journey mirrors the struggles of many teens trying to find their place. It's that mix of humor and vulnerability that makes him stand out in a show full of memorable characters.

Demetri's arc in 'Cobra Kai' Season 5 is one of the most satisfying character turnarounds. After seasons of being the awkward underdog, he finally embraces his role as a Miyagi-Do fighter with confidence. His rivalry with Hawk reaches a boiling point early in the season, but their eventual reconciliation is a highlight—watching them team up against Cobra Kai’s new recruits felt like payoff for years of tension. The season also gives him more screen time with Daniel, who mentors him in a way that echoes Mr. Miyagi’s lessons. Demetri’s tech skills even come into play during the dojo war, proving he’s not just comic relief anymore. By the finale, he’s standing shoulder-to-shoulder with the main fighters, and that moment when he lands a critical hit in the tournament? Pure vindication.

Man, Demetri's journey in 'Cobra Kai' has been such a rollercoaster! From being the awkward, bullied kid to slowly finding his confidence, it’s been wild to see. And yeah, he does end up with a girlfriend—Yasmine, of all people! Who’d have thought? The nerdy guy and the former queen bee? Their dynamic is honestly one of the funniest parts of the later seasons. It’s not some instant fairy-tale romance either; they’ve got this weird, bickering chemistry that somehow works. Yasmine’s character grows a lot too, which makes their relationship feel earned rather than just thrown in for fanservice. What I love is how the show doesn’t make their relationship perfect. Demetri’s still his sarcastic self, and Yasmine’s got her diva moments, but they balance each other out. It’s refreshing to see a teen relationship in a show that doesn’t revolve around drama for the sake of drama. They’re just two weirdos who somehow click, and that’s way more relatable than some epic love story. Plus, the way their friends react is pure gold—especially Miguel’s disbelief.

Robby Keene in 'Cobra Kai' is played by Tanner Buchanan, and man, does he bring some serious depth to that role! At first, I thought Robby was just another troubled teen trope, but Buchanan's portrayal adds layers—you see the anger, the vulnerability, and that flicker of hope under the surface. His chemistry with William Zabka (Johnny Lawrence) is electric, especially in those messy father-son moments. What’s wild is how Buchanan makes Robby’s arc feel so human. One minute you’re frustrated with his choices, the next you’re rooting for him to catch a break. And those fight scenes? Dude trained hard—it shows in every kick and punch. Honestly, he’s become one of my favorite parts of the show, especially in later seasons where Robby’s loyalty gets tested.

Mary Mouser absolutely nails the role of Sam in 'Cobra Kai' season 1! She brings this perfect mix of vulnerability and strength to the character, making Sam feel like someone you’d actually wanna be friends with. I love how she balances the legacy of her dad, Daniel LaRusso, with her own struggles—high school drama, first loves, and the whole karate rivalry mess. Mouser’s chemistry with the cast, especially Tanner Buchanan (Robbie), is so natural. It’s wild to think she’s been acting since she was a kid—her experience totally shows. Rewatching season 1, I’m struck by how she makes Sam’s arc feel fresh. From the stress of living up to expectations to that iconic fight at the school, Mouser never oversells it. She’s just... effortlessly cool? Also, props to the writers for giving her layers beyond 'karate champ’s daughter.' Her scenes with Miguel’s actor, Xolo Maridueña, have this awkward teen energy that’s hilarious and heartwarming. Honestly, the show wouldn’t hit the same without her.

Man, William Zabka absolutely nails the role of Johnny Lawrence in 'Cobra Kai'—it’s like he was born to play this guy. The way he balances Johnny’s gruff exterior with those unexpected moments of vulnerability is just chef’s kiss. I mean, who’d have thought the bully from 'The Karate Kid' would become such a layered character decades later? Zabka’s timing is impeccable, especially in the show’s darker humor scenes. He’s not just replaying the 80s trope; he’s reinventing it, making Johnny oddly relatable as a washed-up guy trying to figure out life. The show’s smartest move was giving him room to grow beyond the villain label. And let’s talk about his chemistry with Ralph Macchio (Daniel LaRusso)—it’s electric. Their rivalry-turned-reluctant-respect arc is the heartbeat of the series. Zabka’s physicality, too, is spot-on; you believe he’s still a fighter, even when he’s stumbling through parenting or YouTube tutorials. It’s wild how a character once written off as one-dimensional now feels like the most human part of the 'Karate Kid' universe. Every time he mutters 'Quiet!' or grumbles about millennials, I’m hooked.

I can't help but grin remembering that the character Devon Lee in 'Cobra Kai' is portrayed by Peyton Elizabeth Lee. I first noticed her because she brings this really grounded, quietly determined energy to the role — the kind of presence that makes a new character feel like they’ve always belonged in the world of the show. Peyton Elizabeth Lee is best known for leading roles in shows like 'Andi Mack' and 'Doogie Kameāloha, M.D.', and seeing her step into the more action-adjacent, karate-centric world of 'Cobra Kai' was a neat shift that showed a different side of her acting range. What I appreciated most was how her performance added extra texture to the younger cast: she didn’t have to be the loudest or flashiest to be memorable. Small choices — a look, a posture in a dojo scene, a line delivered with restraint — made Devon Lee feel real and layered. If you like checking out where actors from family or teen shows go next, Peyton Elizabeth Lee’s turn in 'Cobra Kai' is a fun watch. It’s a nice reminder that casting someone with charm and subtlety can elevate even a supporting role, and for me it made the show feel fresher all over again.

Jacob Bertrand absolutely nails the role of Hawk in 'Cobra Kai,' bringing this complex character to life with such intensity. His transformation from the timid Eli to the confident, mohawk-sporting Hawk is one of the show's most gripping arcs. Bertrand's portrayal balances vulnerability and aggression perfectly, making you root for him even when he's making questionable choices. As for Wendy, that's actually Peyton List playing Tory Nichols, not Wendy—common mix-up since she's such a standout! List's fiery performance makes Tory a force to reckon with, especially in her rivalry with Samantha. The way she channels Tory's raw anger and hidden pain adds so much depth to the dojo wars. Both actors elevate their roles beyond typical teen drama tropes.