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Zac Efron<\/strong><\/a> has a great relationship with his younger brother Dylan<\/strong> \u2014 himself a successful influencer and emerging actor \u2014 and the pair are just as fond of their younger half-siblings Olivia<\/strong> and Henry<\/strong>. A source exclusively tells Life & Style<\/em> the High School Musical<\/em> heartthrob has taken on a doting mentor role for his younger siblings and is for sure making their blended family a welcome one!<\/span><\/p>\n \u201cThey are one of Hollywood\u2019s happiest blended families,\u201d says an insider close to the Efrons. \u201cThey both adore their little brother and sister. There\u2019s such a massive age gap, so it would be easy to be quite detached, but Zac and Dylan have both made a huge effort to bond with them.\u201d<\/span><\/p>\n Zac, 37, rose to fame as the teen face of High School Musical<\/em>, but has since developed into a versatile actor and built a diverse list of post-Disney credits, including The Greatest Showman<\/em>, Extremely Wicked, Shockingly Evil and Vile<\/em>, and most recently The Iron Claw<\/em>. But the source notes he\u2019s just as down-to-earth<\/a> at home as he\u2019s always been.<\/span><\/p>\n The Neighbors<\/em> star\u2019s brother, Dylan<\/strong>, 33, has also carved out a career for himself in entertainment and social media with fitness and outdoor-adventuring<\/a> content on YouTube and Instagram. In the same vein, he\u2019s also collaborated with his older brother on the Netflix adventure series Down to Earth with Zac Efron<\/em>, where he served as both a producer and cohost.<\/span><\/p>\n \u201cDylan has more free time so he\u2019s able to be around a lot more, just because Zac is usually going from one set to another,\u201d the source adds. \u201cBut anytime Zac isn\u2019t working, he makes visiting home a huge priority.\u201d<\/span><\/p>\n The brother\u2019s bond is as strong as ever and the two are often praising each other in interviews, posts and press appearances. Zac told People<\/em> he used their relationship as inspiration for his performance<\/a> in The Iron Claw<\/em>.<\/span><\/p>\n \u201cThis movie is about brothers, at the core of it, and you know, I\u2019m a big brother myself. I love him to death. But there\u2019s a certain kind of relationship \u2014 I don\u2019t know, it\u2019s just the brother bond.\u201d<\/span><\/p>\n \u201cFamily is everything to him,\u201d the insider continues. \u201cYou can see that in the way he\u2019s always kept Dylan so close. He\u2019s his biggest supporter and fan, he\u2019s always talking Dylan up.\u201d<\/span><\/p>\n In fact, Zac played a key role in launching Dylan\u2019s social media career. The source explains, \u201cHe helped him launch his YouTube channel and has done a lot to promote him and encourage him to go after a career in the business too. He\u2019s also teamed up with him on shows and helped get him jobs.\u201d<\/span><\/p>\n Zac\u2019s caring big brother mentality extends to their much younger half-siblings, Olivia and Henry,\u00a0 from their father\u2019s second marriage. \u201cHe\u2019s the older brother and he sees it as his duty to look out for Dylan,\u201d the source says. \u201cAnd it will be the same with Olivia and Henry. He\u2019ll be there for them for whatever they need.\u201d<\/span><\/p>\n<\/p><\/div>\n