Mariska Hargitay reveals her biological father’s identity in HBO’s My Mom Jayne , uncovering a 30-year family secret tied to her late mother Jayne Man
Mariska Hargitay, renowned for her role as Detective Olivia Benson on Law & Order: SVU , has shattered decades of silence in her new documentary My Mom Jayne , premiering at the Cannes Film Festival. The film delves into the life of her late mother, Hollywood icon Jayne Mansfield, while uncovering a deeply personal revelation: the identity of Hargitay’s biological father.
For over 30 years, Hargitay believed her father was Mickey Hargitay, a former Mr. Universe and Mansfield’s second husband. However, the documentary reveals that her biological father is Nelson Sardelli, a retired Las Vegas showman. Hargitay discovered the truth at age 20 after seeing a photo of Sardelli and confronting her mother. “It was like the floor fell out from underneath me,” she shared, describing the emotional upheaval of learning she’d “lived a lie”
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The affair between Mansfield and Sardelli occurred briefly before she reconciled with Mickey, leading to their 1964 divorce. Hargitay’s first meeting with Sardelli at age 30 in Atlantic City was fraught with tension. “I went full Olivia Benson on him,” she joked, referencing her TV persona’s tough demeanor. “I didn’t want anything from him—I had a dad,” she told Vanity Fair , emphasizing loyalty to Mickey, who raised her
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The documentary also explores Mansfield’s tragic death in a 1967 car crash, which claimed her life at 34. Hargitay, just three years old at the time, survived alongside her siblings. The film paints Mansfield as a multifaceted figure: a glamorous actress, a violinist with a 160 IQ, and a devoted mother of five. “She was ahead of her time,” Hargitay reflected, celebrating her mother’s legacy
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My Mom Jayne features interviews with Sardelli, Hargitay’s half-sisters, and siblings from Mansfield’s other marriages. The HBO documentary, set for release on June 27, 2025, marks Hargitay’s directorial debut and a cathartic step in reconciling her complex family history.
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