Donna Douglas -- who famously portrayed Elly May Clampett on the legendary 60s TV series "The Beverly Hillbillies" -- passed away Thursday at her home in Louisiana with friends and family by her side.

Douglas' granddaughter confirmed the death to TMZ.

Donna starred on "The Beverly Hillbillies" for all nine seasons and even returned for the 1981 reunion TV movie.

Douglas also appeared in several other iconic TV series, including "Mister Ed," "The Twilight Zone," "The Adventures of Ozzie and Harriet," "Adam 12," and "Route 66."

She also co-starred with Elvis Presley in "Frankie and Johnny."

Douglas filed two famous lawsuits over the years. In the 1990s, she sued Disney claiming they stole the idea for "Sister Act" from her. In 2011, she sued Mattel for making a Barbie doll with her likeness without her permission. She lost the "Sister Act" case and settled the Barbie case.

Donna was 81.

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Dang.

rip Elly May. I'll always remember you in a bikini out by the cement pond.

Honestly there are worse ways to be remembered.

She was an integral part of many a childhood. Not sure there were many shows I liked better from my younger days. Pops and Mama and I were all big fans of Buddy Epsen over the years as well.

Almost makes you want one of Elly May's biscuits with some possum stew, or maybe even one of her sponge cakes.

She fueled many a childhood fantasy.........
RIP

rip Elly May. I'll always remember you in a bikini out by the cement pond.

I won't say for sure that never happened but I saw every episode of the Hillbillies and the most daring thing I saw her in was a one piece suit.

Almost makes you want one of Elly May's biscuits with some possum stew, or maybe even one of her sponge cakes.

Almost, but not quite. Her cooking was notoriously inedible.

I think it's a cruel joke that jethro is the last living Clampett. RIP Donna.

Almost, but not quite. Her cooking was notoriously inedible.

Awww ... Try the spongecake.