11. Zac Efron
The star of High School Musical is up next on our rehabbed celebrities list. Who would have thought this sweet and charming boy would end up struggling for addiction?
Zac was not open about his rehabilitation. Until he went on the outdoor adventure with Bear Grylls on Running Wild.
He said to Grylls, he was suffering from a depression led by his celebrity life. It is not the work, but what lies in between.
Zac went to rehab in 2013. After that, he attended several AA (Alcoholics Anonymous) meetings. And now he is back on track.
