Joosten holding the Emmy she won in 2005. (FRED PROUSER/REUTERS)

Joosten — best known for her roles as Mrs. Landingham on “The West Wing” and McCluskey on “Housewives” — died of lung cancer 20 days after her character did in the series finale. This is the first time she has received a nomination in the supporting actress category as a cast regular; she was previously nominated for three Emmys for “Housewives” as a guest actor, winning twice in 2005 and 2008.

A handful of actresses have previously earned posthumous Emmy nominations. In 2009, Farrah Fawcett was nominated for her fourth Emmy three weeks after she died, for “Farrah’s Story,” a documentary that she co-produced about her battle with cancer. In 1977, Diana Hyland won an Emmy for outstanding performance by a supporting actress in a TV special for “The Boy in the Plastic Bubble,” after dying of breast cancer. Her co-star and real-life love interest John Travolta accepted the award on her behalf. “Bewitched” actress Alice Pearce also won the Emmy for best supporting actress in a comedy series in 1966 after she died of ovarian cancer.

View Photo Gallery: The 2012 Emmy nominees were announced Thursday. “Mad Men” and “American Horror Story” lead the pack with 17 Emmy Award nominations each.


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