Mariska Hargitay was 3 years old when her mother, actress Jayne Mansfield, was killed in a car accident in 1967. The mother of five, who was compared to Marilyn Monroe, was 34.

Mariska Hargitay revealed in a new documentary that her biological father is not Mickey Hargitay, the man who raised her, but rather singer Nelson Sardelli.

Mariska Hargitay has dropped a bombshell family secret in her new film "My Mom Jayne" at its premiere at the Cannes Film Festival. The "Law and Order" actress, who is the daughter of the late Hollywood sex symbol Jayne Mansfield,