'Eight Is Enough' star Adam Rich dies at 54

A family member tells TMZ ... Adam died Saturday at his LA area home.

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Adam played Nicholas Bradford, the youngest son on "Eight Is Enough". The series ran from 1977-1981.

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He also had other credits, including "Code Red" in 1981 and "Dungeons and Dragons" in 1983.

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Adam made VH1's list of the 100 Greatest Kid Stars, coming in at #73.

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He retired from show business in the 80s because he said he didn't like the glare of the spotlight or, for that matter, anything celebrity-related.

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Adam began acting at Chatsworth High School in the San Fernando Valley.

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His drama teacher also taught Kevin Spacey, Val Kilmer and other major actors.

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Unfortunately, Adam had substance abuse problems, which resulted in his arrest in 1991 for breaking a pharmacy window in an attempt to obtain drugs.

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He was bailed out by his TV dad, Dick Van Patten, on "Eight Is Enough". He also had other legal problems.

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