The 80s teen idol -- who once admitted to taking 85 Valium pills a day -- died of an apparent drug overdose at age 38 in March 2010.

 

In 1991, the Diff'rent Strokes star tried to rob a video store at gunpoint. A year later, she was arrested for forging a Valium prescription.

In 1999, at age 34, she died after overdosing on Vanadom and Vicodin.

 

She was arrested for drunk driving twice and cocaine possession and went to rehab three times. "I tried to mask my problems with alcohol, cocaine and mind-altering substances," she recently said.

 

After pleading guilty to repeatedly hitting a friend in the head with a broken wooden stool, the former Family Ties actor was arrested again in February for marijuana possession.

 

After leaving Family Matters, she began abusing drugs and alcohol -- and supported her habit by starring in porn flicks. In 2008, she received help on VH1's Celebrity Rehab With Dr. Drew.

 

The former star of '70s-'80s sitcom One Day at a Time -- who has a long history of substance-abuse problems -- admitted last year that she had a 10-year-long consensual sexual relationship with her father, musician John Phillips.

 

The 80s teen idol was addicted to heroin, cocaine and sex. He says he has been sober for more than a decade.

 

The Paper Moon Oscar winner, who has a long history of substance-abuse problems, was busted for buying crack in 2008. "There's no excuse for what I did," said O'Neal, who spend two half-day sessions in a drug treatment program.

 

In February, the former teen idol - who has been battling drugs for more than a decade - was arrested for possession of a controlled substance.

 

In 2006, the Sixth Sense star was charged with three misdemeanors including driving under the influence. He was later ordered to complete 60 hours of alcohol rehab.

 

In 2005, the Baywatch alum was arrested after setting up a home meth lab. He says he has been sober for more than four years.