Zac Efron with brother Dylan: What Most People Get Wrong About the Famous Siblings

You’ve seen the photos. Two incredibly fit guys shirtless on a boat, or maybe deep in a forest somewhere, looking like they were sculpted out of the same piece of granite. If you’ve spent any time on Instagram, you know exactly who I’m talking about. But the thing about Zac Efron with brother Dylan is that their relationship isn't just some curated Hollywood PR stunt. It’s actually a lot more interesting—and way more relatable—than the tabloid headlines let on.

Honestly, for a long time, Dylan was just "the younger brother." The guy in the background. But lately? He’s been carving out a space that’s entirely his own, and it’s shifted the dynamic between them in a way that’s kind of cool to watch.

They actually hated each other as kids

Growing up in San Luis Obispo, things weren't exactly peaceful in the Efron household. Dylan has been pretty open about this in interviews, specifically mentioning that they were "always fighting" when they were younger. We’re talking full-on wrestling matches and punching. Basically, your standard brotherly chaos, but intensified by the fact that they are both hyper-competitive.

There was a weird age gap thing, too. Zac was the smaller kid for a while, then he hit puberty and suddenly shot up five inches, which meant he could finally "kick Dylan's ass," as Dylan puts it. They were just into different things. Zac was the theater kid, the one doing local musical productions at age 11. Dylan was the athlete, the one who just wanted to be outside and exhaust himself.

The real shift happened after college. When Dylan graduated from Cal Poly with an economics degree in 2013, he moved to Los Angeles. Zac actually took him under his wing and let him live with him. That was the turning point. They stopped being two kids fighting over the remote and started being actual friends.

The "Off the Grid" era and working together

Most people don't realize that Dylan isn't just a "plus one" at movie premieres. He’s actually a pretty seasoned producer. He worked behind the scenes on films like American Sniper and Ready Player One as a production coordinator. He’s got that economics brain—he understands the logistics, the budgets, and the boring stuff that makes movies actually happen.

Eventually, they started collaborating on screen. If you watched Down to Earth with Zac Efron on Netflix, you saw Dylan’s influence all over it. He was a producer on the show, and you can see their chemistry in the way they interact. It’s very "bro-y"—lots of "dude" and "sick," but there’s a genuine respect there.

Then came the YouTube series, Off the Grid. This was probably the most authentic look we’ve ever gotten at Zac Efron with brother Dylan. No makeup, no scripts, just two guys trying to survive in the desert or go fly fishing in Montana. Dylan is usually the one pushing the pace. While Zac is incredibly fit, Dylan is a literal Ironman triathlete.

Dylan is a serious athlete (No, seriously)

If you think Dylan just goes to the gym to look good for photos, you haven’t seen his race stats. The guy is a machine. He’s completed multiple Ironman triathlons, including Ironman Arizona in 2016 where he clocked an impressive 10 hours and 29 minutes.

He’s also a sub-three-hour marathoner. He ran the Boston Marathon in 2018—the year it was pouring rain and freezing—and finished in 2:57:50. Zac was actually there at the finish line to greet him. It’s one of those rare moments where the world's biggest movie star is just a proud older brother waiting in the rain.

The new generation: Olivia and Henry

The Efron family tree got a bit more complicated (and cuter) after their parents, David Efron and Starla Baskett, divorced in 2016. Their dad remarried and had two more kids: Olivia and Henry.

This has created a hilarious new competition between Zac and Dylan: who is the favorite "big" brother?

• Olivia was born in late 2019.
• Henry came along shortly after.
• Dylan recently joked that Henry is basically him "to a T"—not as smart as Olivia, but constantly running around and hitting his head and laughing about it.

Zac calls Olivia his "little heartbreaker," and he’s constantly posting videos of them reading or playing. But Dylan is winning the "fun brother" award lately. In August 2023, he posted a video of Olivia explaining why she loves him more, mostly because he’s "strong enough to hold her upside down."

Dylan’s solo stardom: The Traitors and DWTS

For a long time, Dylan stayed in the shadows. He didn't even have social media until a few years ago. But 2025 was a massive year for him. He won Season 3 of Peacock’s The Traitors (he was a "Faithful," for those keeping track), and he made it all the way to the finale of Dancing with the Stars Season 34.

Zac showed up to the DWTS semi-finals in November 2025 to support him, which was a huge deal because Zac usually stays pretty private. Seeing them together in that environment—where the roles were reversed and Zac was the one in the audience cheering—really showed how much their relationship has evolved.

What most people get wrong

The biggest misconception is that Dylan is trying to "be" Zac. In reality, they have very different vibes. Zac is an actor; he’s comfortable being other people. Dylan has admitted he doesn't have that skill. He’s much more comfortable just being himself, which is why reality TV and documentaries work so well for him.

They also aren't "Hollywood" kids. Their parents worked at a power plant in a small town. That groundedness is why they seem to get along so well now. They’ve managed to keep their bond tight despite the insanity of Zac’s career.

Next Steps for Efron Fans: If you want to see the real dynamic between these two, skip the red carpet photos. Head over to YouTube and watch the Montana vacation videos on Dylan’s channel. It shows them with their younger siblings, Olivia and Henry, and gives you a much better sense of who they are when the cameras aren't "officially" rolling. You’ll see that behind the six-packs and the fame, they’re really just two guys who finally figured out how to be best friends.