In September 2009, actress Mackenzie Phillips revealed to Oprah Winfrey that her rock star father, John Phillips, raped her at age 18, sparking a 10-year-long consensual sexual relationship. Phillips, 49, the former star of '70s-'80s sitcom "One Day at a Time," said she was first raped by her father, the lead singer of the Mamas and the Papas, in a hotel room while passed out after a drug binge. (She also has a history of substance abuse issues.)
The relationship continued long after she married Jeff Sessler when she was 19-years-old, and ended only when she became pregnant and feared her father was the baby's father, Phillips said. Her father paid for an abortion. "I woke up that night from a blackout to find myself having sex with my father," Phillips said on "Oprah," reading an excerpt from her new book, "High on Arrival." "I don't know how it started."
During the 1980s, television was Corey Feldman's oyster. After landing a starring role in a McDonald's commercial at age three, he appeared in dozens of television shows, including "Mork and Mindy," "One Day at a Time," "Cheers" and "Eight is Enough." Feldman successfully crossed over into film, co-starring in box office boons like '85's "The Goonies" and '86's "Stand By Me."
But Feldman's success couldn't solve his problems. He worked constantly to escape parents who he claimed abused him, and at age 15, was granted legal emancipation from Sheila and Robert Feldman. Neverending exposure to the Hollywood lifestyle led to an appetite for drugs, and in 1990, Feldman was arrested for heroin possession -- twice. He went to rehab the following year.
"It took people a long, long time to forgive me. I was just a kid making mistakes like any other kid," he told the Phoenix New Times in 2000.
These days, Feldman's back on his feet. In 2002, he channeled his trials and tribulations in the business into a solo album, "Former Child Actor" and appeared on the first season of VH1's "The Surreal Life." His latest project was with the late Haim -- the two starred in the A&E reality TV series, "The Two Coreys."
"Full House" sweetheart Jodie Sweetin didn't grow up to resemble her goody-two-shoes character at all. At age 22, the star of the '80s and '90s sitcom developed a debilitating daily meth habit that she kept a secret from her then-husband, LAPD officer Shaun Holguin.
In 2005, after a night of partying landed her in the hospital, Sweetin sought treatment. Once sober, she divorced Holguin and married Cody Herpin, the father of her daughter Zoie.
But in November 2008, Sweetin split with Herpin. Last year, she came out with the book "unSweetined," in which she reveals she kept the meth, cocaine and ecstasy binges going while she claimed to be sober. In one passage, she talks about breaking into tears while addressing a crowd at Wisconsin's Marquette University about her "trials and tribulations."
"I talked about growing up on television and about how great my life was now that I was sober, and then midspeech I started to cry," Sweetin writes. "The crowd probably thought that the memories of hitting rock bottom were too much for me to handle. Or maybe they thought the tears were just a way for an actor to send a message that drugs are bad. I don't know what they thought."