Zack Sharf Zac Efron sparked drama among “High School Musical” fans when he skipped out on a pandemic cast reunion in April 2020, but the actor now tells E! News that he’s more than eager to show up whenever there’s a film reboot. Efron had his acting breakthrough by playing Troy Bolton in the 2006 Disney Channel original movie, which produced two Efron-starring sequels in 2007 and 2008.