Zac Efron appeared on the series premiere of Running Wild with Bear Grylls last night, and while he had no trouble snacking down on an omelet of worms and wild bird eggs, Efron's most surprising moment came when he opened up to Grylls about his struggles with substance abuse.

When Zan and Bear were lounging fireside after their day's adventure, the topic of Efron's rehab stint came up, and the Neighbors actor discussed that dark period in his life with surprising candor.

Posted in: Zac Efron

Between Channing Tatum's admission of alcoholism and a never-ending stream of glassy-eyed Lindsay Lohan party photos emerging from the actress' time in London, we thought it would be a good time to run down a list of celebs who have struggled with excessive drinking.

Some of the stars on this list consider themselves alcoholics, but have sobered up and now speak openly about their years of heavy boozing as a cautionary tale.

Posted in: Demi Lovato

Zac Efron Biography

Zac Efron, Vanessa Hudgens Zac Efron is a young, adorable actor. He's often compared to Matt Damon and Leonardo DiCaprio. His career begin with High School Musical,... More »
Born
Birthplace
San Luis Obispo, California
Full Name
Zachary Efron

Zac Efron Quotes

Everything's been stepped up a few notches, all the dances, and I think the songs are pretty catchy this time around. And it's our senior year, so we've got graduation and prom to look forward to. All fun things to have in a movie.

Zac Efron [on High School Musical 3]

You never know with teenage girls. It's funny. But they're always, most of the time they're pretty respectful, and I love 'em. I'm very grateful.

Zac Efron