Mariska Hargitay’s Husband: Who Peter Hermann Is

Mariska Hargitay’s career

Mariska Hargitay is an American actress known for playing Olivia Benson on NBC’s Law & Order: Special Victims Unit, a role she has held since 1999. Her other television credits include Falcon Crest and In the Heat of the Night in 1988, Tequila and Bonetti in 1992, and Can’t Hurry Love from 1995 to 1996. She also appeared in ER from 1997 to 1998.

Hargitay has received three Primetime Emmy Awards and a Golden Globe Award for her work on Law & Order: Special Victims Unit. She received a star on the Hollywood Walk of Fame in 2013 and founded the Joyful Heart Foundation, which supports people who have been sexually abused. She co-produced the documentary I Am Evidence in 2017, then launched Mighty Entertainment in 2025 and directed My Mom under the company.

Who Peter Hermann is

Peter Hermann is an American actor born in New York City on 15 August 1967. His parents were German, and he moved to Germany when he was two months old. He has also been identified as German by biographical records.

Hermann is best known for his recurring role as defence attorney Trevor Langan on Law & Order: Special Victims Unit. He began the role in 2002 while appearing in the series that led to his meeting Mariska Hargitay. His work also includes television, film and stage acting.

His marriage to Mariska Hargitay

Hermann met Hargitay while he was appearing on Law & Order: Special Victims Unit, where she played Olivia Benson. They married on 28 August 2004 in Santa Barbara, California. People reported the marriage in its 2 September 2004 coverage of the couple’s wedding.

Their relationship has continued alongside their work on the same television series. Hargitay and Hermann were married in April 2011 when they adopted a baby girl, then adopted a baby boy six months later. Their family record lists three children in total.

Mariska Hargitay’s wider family

Mickey Hargitay is Mariska Hargitay’s father. Nelson Sardelli is also listed as her father. Jayne Mansfield is her mother. Jayne Marie Mansfield is Hargitay’s sibling. Venico Cimber is also her sibling, as is Zoltan Hargitay.

August Miklos Friedrich Hermann is a child of Mariska Hargitay and Peter Hermann. Andrew Nicolas Hargitay Hermann is also their child. The family record lists three children, while the two adopted in 2011 were described as a girl and a boy.

Hargitay’s parentage connects her to the wider family of actors and performers associated with Mickey Hargitay and Jayne Mansfield. Her own career began on television and developed through a long-running role in Law & Order: Special Victims Unit.

Hermann’s work outside the series

Hermann has appeared in several commercials, including the anti-tobacco “Fair Enough” advertisements. He also became the face of Persil ProClean detergent from the late 2010s. These campaigns formed part of his work beyond his role as Trevor Langan.

He appeared in the Broadway premiere of Eric Bogosian’s Talk Radio, starring Liev Schreiber and featuring Stephanie March from Law & Order: Special Victims Unit. Hermann also published the children’s book If the S in Moose Comes Loose through HarperCollins in March 2018.

Details not publicly reported

Hermann’s education has not been described in published biographical profiles. His academic background and training have not been set out in public accounts of his career. A complete filmography has also not been published in the profiles reviewed.

Hermann’s parents have not been named in published biographies. Details of their backgrounds and later lives have not been provided in accounts of his upbringing. His own account of his early life has not appeared in print.

The identity of Hargitay and Hermann’s third child has not been published, although their family record lists three children. Further biographical details about that child have not been made public.