That seventies show co-star, Lisa Robin Kelly, who played Eric Forman's (Topher Grace's) sister from 1998 to 2003 has passed away after checking into a rehab clinic in California, the Sydney morning herald reported. She was in the cast of the 70s show, representing a nostalgic look back in the 'tv of the 70s' theme. TV audiences across the country hailed the hit show which was an authentic look into the tv from the 70s. It was also a refreshing theme trailing popular sitcoms like The Bill Cosby Show and Family Ties.

Her manager Craig Wycoff told the herald times, "Unfortunately Lisa Robin Kelly passed away last evening. Lisa had voluntarily checked herself into a treatment facility early this week where she was battling the addiction problems that have plagued her these past few years."

That seventies show aired in Australia on the Seven Network Channel.

Although she was popular on that seventies show episodes, she fell victim to an addiction to alcohol, while other "that seventy show actors" climbed up the ladder to Hollywood success.

According to the australian, the that seventies show actress was arrested for DUI and a number of times and she was also involved in legal disputes concerning spousal abuse.

The actress from the cast of 70s show was in and out of hospitals to treat her alcohol problem, but a recent row with her separated husband Robert Giliam was reportedly what made her drink again, say sources close to the story.

The herald sun reported that Lisa had not used her Facebook or Twitter pages in a month.

Robert J. Gilliam told Celebuzz "I love Lisa very much. I saw a side to her that no one else got to see," adding, "It's killing me." He said that Lisa had been struggling with alcohol and prescription drug addiction after a miscarriage. The self abuse that followed resulted in the breakdown of her marriage and an exit from that Seventies show.

Robbins passed away in her sleep due to cardiac arrest. She checked herself in to a rehab centre to fix her alcohol-related problems. Although her boyfriend blamed her separated husband for her ill health, the emergency medical response team said that they found needle marks on both her arms, suggesting a drug addiction.

Her agent said, "She had been fighting demons for a while and finally lost her battle," in a report by TMZ news. He added, that it is sad to see an actress of such calibre go so early.

Apart from that seventies show episodes, Kelly also starred in other entertaining tv shows "Amityville Dollhouse" among other TV serials.