04/04/2013 08:04 am ET

Jane Fonda's Daughter, Mary Williams, On Ted Turner And Their First Thanksgiving Together (VIDEO)

When she was 14, Mary Williams moved from the poverty-stricken streets of East Oakland, California, to Jane Fonda's hacienda in Santa Monica, California, becoming the adopted daughter many people didn't know the Oscar-winning actress even had. In the Sunday, April 7, episode of "Oprah's Next Chapter," Williams and Fonda sit down with Oprah for their first-ever interview together, opening up about Williams' tumultuous past, her experience with the Black Panthers and what it was like to become an African-American teen in a wealthy -- and white -- Hollywood family.

In this exclusive clip from the episode, Williams discusses her relationship with Ted Turner, Fonda's third husband, whom she describes in her soon-to-be-released memoir -- The Lost Daughter -- as a "true father." Williams admits, however, that she had reservations about the billionaire media mogul.

"I was nervous about Ted," she tells Oprah in the clip. "[But] he turned out to be one of the most amazing people I've ever met."

Williams' initial nerves were on display for the first Thanksgiving she spent at Turner's home in the south. "It was a plantation," she remembers. "With the dinner bell that you ring and an all-black staff, soul food for days and hunting dogs everywhere. And a huge portrait of Scarlett O'Hara. It was very, very, very Southern."

Despite her trepidation, Williams says she was welcomed into the family by the other children, whom she still considers her brothers and sisters today. And even though Turner and Fonda divorced in 2001, he is also still a part of Williams' life.

"Are you still close to Ted?" Oprah asks Williams.

"Oh yeah," she responds. "Absolutely."

Watch the full interview with Jane Fonda and Mary Williams on "Oprah's Next Chapter," airing Sunday, April 7, at 9 p.m. ET on OWN.

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