It seems that for most of her life, Liza Minnelli has been living up to and trying to escape the shadow of her mother, Judy Garland.
Not only did she inherit her mother's talent for singing, dancing and acting, but she also inherited her mother's addictions to drug and drink. Garland died from a drug overdose at 46. Minnelli became a star in her own right but also succumbed to the darker forces of her mother's personality.
After waiting until 30 to sip her first drink, Minnelli fell deeply into booze and drugs in the hard-partying '70s. By 1984, her half-sister Lorna Luft was forced to literally kidnap Minnelli to save her from a downward spiral of alcohol, cocaine and pills. Luft wrote in her 1988 memoir, "Me and My Shadow," of how Frank Sinatra loaned her his plane to fly Minnelli to the Betty Ford Clinic in California.
Liza has returned to rehab a handful of other times since then, including in 2003, when she checked herself into an eight-week "self-help" program, according to Reuters.
Mackenzie Phillips and father John Phillips
It almost seemed like Mackenzie Phillips' battles with drugs were behind her. The "One Day at a Time" star saw her career, which had skyrocketed in the 1970s and '80s, suspended when she suffered two near-fatal overdoses, went through rehab several times and repeatedly relapsed.
She returned to television in the 1990s, playing a counselor on the original "90210," and recently she played a rock star mom in the Disney Channel series "So Weird."
Then came news in August that the 48-year-old actress had been arrested at Los Angeles International Airport, after police found a "small amount" of drugs and a hypodermic needle in her possession. Shortly after, TMZ.com reported that she was entering rehab -- for the 10th time.
Phillips just can't seem to escape either her genes or her past.
"I grew up in mansions, but everything was dirty and broken," she told USA Weekend magazine in 1999. "Very little was going on inside except sex, drugs and rock 'n' roll."
Her father, John Phillips, founder of '60s folk rock group The Mamas and the Papas, was widely known for his heavy narcotic use. On "The E! True Hollywood Story," he admitted that he shot cocaine and heroin into his body "almost every 15 minutes for two years." Even after receiving a liver transplant in 1992, he was photographed drinking. He died in 2001 at age 65.
Charlie and Martin Sheen
He recently told AARP magazine that he turned to Alcoholics Anonymous for help. "I only got involved with AA when I was trying desperately to find a way to help Charlie, because I didn't have any skills," he said.
Charlie, who had developed a bad-boy reputation for his partying and drug use, was hospitalized for a drug overdose in 1998 when he tried injecting cocaine.
"The only way I got to Charlie, frankly, was because he'd skipped out of the hospital," Sheen told the magazine. "I had to pay the bill.
"He'd consumed an illegal substance; he was on probation," Sheen explained. "This was a criminal matter. And so that was the wedge; that was the leverage I had. That is what I took to the court; that's what I took to the sheriff. It was the only way I got him."