If you’ve seen a guy on screen who looks like he’d help you carry your groceries and then accidentally trip over his own feet, you’ve probably met Daniel Diemer. He’s got that specific energy. You know, the "gentle giant" thing. At 6'4", he’s hard to miss, but it’s his weirdly sincere vulnerability that actually sticks with you. Most people first caught him in that Netflix hit The Half of It, but honestly, his career has taken some pretty sharp turns since then.
He didn't even start out wanting to act. Funny how that works. He was a high-level athlete—soccer and tennis—until his body basically grew too fast for his own good. Imagine being so tall your own speed can't keep up. That led to a back injury, a short stint in pre-med (yeah, really), and eventually, thank god, a masterclass in acting that changed everything.
The Half of It: The Breakout Moment
Let’s be real. Daniel Diemer movies and tv shows usually start and end with Paul Munsky for most casual fans. Paul is the "jock" who isn't actually a jerk. When Alice Wu was casting this movie, she reportedly looked at over 600 actors. 600! And she picked Diemer because he didn't feel like a "Hollywood pretty boy." He felt like a real person.
In The Half of It, he plays a clumsy football player who hires a shy student, Ellie Chu, to write love letters to a girl they both—spoilers—secretly like. It’s a modern Cyrano de Bergerac twist.
What makes his performance work isn't the dialogue. It's the way he looks like he’s constantly outgrowing his own skin. He brings a level of "himbo" energy that is actually sweet rather than annoying. It’s rare.
Crossing into the Riordanverse: Percy Jackson
Now, if you’re a fan of the Percy Jackson and the Olympians series on Disney+, you’ve probably seen the big news. Diemer landed the role of Tyson, Percy’s Cyclops half-brother, for the second season. This is massive.
Tyson is a tough role because he’s a creature of pure heart and immense strength who has spent a lot of time being mistreated.
- He’s a "street kid" in the books.
- He’s fiercely loyal to Percy.
- He has a childlike wonder that can turn into protective rage in a second.
Casting Diemer was a smart move. He already has that "large but harmless" vibe down to a science. Since Season 2 (The Sea of Monsters) is hitting screens in early 2026, he’s basically about to become a household name for a whole new generation of kids who haven't seen his indie work.
Darker Turns and Grit: Under the Bridge and Absolution
It’s not all letters and Greek myths. Diemer has been quietly building a resume that’s actually kinda dark. If you caught the Hulu limited series Under the Bridge, you saw a completely different side of him.
The show deals with the real-life 1997 murder of Reena Virk in Victoria, B.C. (which happens to be near where Diemer grew up). He played Scott Bentland, a local teen caught up in the heavy, tragic atmosphere of that case. It’s a grim watch, but it proved he could handle heavy dramatic lifting without relying on his "nice guy" charm.
Then there’s Absolution (2024). He stars alongside Liam Neeson. Let that sink in. Going toe-to-toe with Neeson in a gritty crime thriller is a far cry from writing love letters in a small town. He plays Kyle Conner, and while the movie itself got mixed reviews, Diemer’s presence was a highlight for those following his transition into more adult, "tougher" roles.
The Full Filmography: A Quick Look
If you’re trying to binge his work, here’s a rough guide to the Daniel Diemer movies and tv shows you should actually care about:
- The Half of It (2020) – The must-watch. Netflix.
- Percy Jackson and the Olympians (2025/2026) – He joins as Tyson. Huge franchise energy.
- Under the Bridge (2024) – Serious, true-crime drama on Hulu.
- Supercell (2023) – He plays William Brody, a kid chasing his father’s legacy as a storm chaser. It’s a bit of an old-school disaster flick.
- Little Brother (2023) – An indie gem where he stars opposite J.K. Simmons. This is where you see his "real" acting chops.
- Brazen (2022) – A Netflix thriller. He’s Rand Morgan. It’s... fine. A bit cheesy, but he’s good in it.
He’s also done the procedural rounds. You can find him in The Man in the High Castle (briefly) and the Facebook Watch series Sacred Lies.
Why He’s Not Your Average Actor
The industry is full of guys who look like they were grown in a lab to play superheroes. Diemer is different. Maybe it’s the Canadian roots or the fact that he almost became a doctor, but there’s a groundedness to him. He often talks about his own insecurities and how he felt awkward growing up.
That translates to the screen.
When he plays a character who feels out of place, you believe him. You don't feel like you're watching a model pretend to be a dork. You feel like you're watching a guy who actually remembers what it's like to be the tallest person in the room and have no idea what to do with his hands.
Actionable Next Steps for Fans
If you want to keep up with his career as it explodes in 2026, here’s how to do it right:
- Watch Little Brother first. Most people skip the indies, but this is his best performance alongside a legend like J.K. Simmons.
- Catch up on Percy Jackson Season 1. You need the context before he shows up in Season 2 as Tyson.
- Follow his interviews. He’s surprisingly articulate about "inner work" and the psychology of acting. It makes the movies better when you know where he’s coming from.
He’s clearly moving toward "leading man" status, but hopefully, he keeps that weird, sincere edge that made him famous in the first place.