Zachary David Alexander Efron (born October 18, 1987) is an American actor. Efron began acting professionally in the early 2000s and rose to prominence as a teen idol for his leading role as Troy Bolton in the High School Musical trilogy (2006–2008). During this time, he also starred in the musical film Hairspray (2007) and the comedy film 17 Again (2009), the former of which earned him a Screen Actors Guild Award nomination.

Efron had starring roles in the films New Year’s Eve (2011), The Lucky One (2012), The Paperboy (2012), Neighbors (2014), Dirty Grandpa (2016), Baywatch (2017), and The Greatest Showman (2017). He played Ted Bundy in Extremely Wicked, Shockingly Evil and Vile (2019) and Kevin Von Erich in The Iron Claw (2023). In 2021, he won a Daytime Emmy Award for hosting the Netflix travel show Down to Earth with Zac Efron (2020–2022).