Who is "Samantha Who?"

She’s the blonde who played Kelly Bundy on "Married With Children," a knockout and a double-mastectomy survivor who isn’t afraid to talk about it.

"The answer to the question ‘Samantha Who?’ is Christina Applegate," said Applegate’s costar Jean Smart, as she delivered her acceptance speech for the Outstanding Supporting Actress in a Comedy Series. While Smart was awarded an Emmy at the 60th Primetime Emmy Awards on Sunday night, it was Christina Applegate who she and many others were praising for her strength, humor, courage and grace.

Appearing at her first award show since her battle with a breast-cancer diagnosis and undergoing a double mastectomy, Applegate arrived at the Nokia Theatre in downtown Los Angeles looking stunning. In a Reem Acra silk organza gown that was sky blue with hints of gold, fashion stylists told the Associated Press that Applegate was one of the best-looking stars on the red carpet.

It was a somber moment when Jean Smart, who plays Applegate’s TV mother on the ABC comedy, applauded the former "Married With Children" star for her recovery. Behind the scenes Smart also told Variety that she has real-life maternal instincts for the 36-year-old actress.

"I feel very protective of her," said Smart. "I was shocked when she told me — I started to cry a little, and I said, ‘This isn’t because I know anything is going to happen to you. I think you’re going to be fine, but I hate to see you go through this.’"

Applegate told People magazine that last night was the first time she wore a dress and lipstick in two months. And from the looks of it, she’s as glamorous today as she was before her BRCA — the cancer gene — diagnosis, which led her to have a double mastectomy to dramatically cut her risk of being diagnosed with breast cancer in the future. The young star also said to People that she plans to educate the public about predictive genetic testing and also to try to remove the stigma that cancer is a disease that affects an older demographic.

"To have a voice and be the voice of a 30-something-year-old girl going through this and dispelling the misnomers that it’s an older woman’s disease is a big part of this for me."

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Christina Applegate Says She’s Breast Cancer Free With Double Mastectomy