The actress says her biological dad is Italian singer Nelson Sardelli, not Mickey Hargitay — something she discovered when she was in her 20s.

Mariska Hargitay has been making headlines after the revelation about her biological father, Nelson Sardelli, during the premiere of her deeply personal documentary, My Mom Jayne.

Actress Mariska Hargitay released a family secret bombshell in a new interview. For years, it was publicly believed that Hargitay's father was Mickey Hargitay, described by Vanity Fair as "a Hungarian bodybuilding champion turned actor who married Mansfield in 1956.