The actress shared the news while celebrating the debut of her new film about her famous mom, Jayne Mansfield.

Mariska Hargitay honored her late mother Jayne Mansfield at Cannes 2025 while promoting her heartfelt new documentary ‘My Mom Jayne’

For the film's May 17 premiere at Cannes, the 61-year-old walked the red carpet in a dazzling hot pink sequin gown that sparkled with every camera flash. The evening was a family affair — Hargitay walked the carpet with Hermann, along with their three children: Amaya Josephine Hermann, Andrew Nicolas Hermann and August Miklos Friedrich Hermann.

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