Peter Hermann: Actor, Author, and Husband of Mariska Hargitay

Author: Staff | Last updated: June 5, 2025

If you search for Peter Hermann, you are likely looking for the American actor best known for playing Charles Brooks on Younger and Trevor Langan on Law & Order: Special Victims Unit—and you may also be curious about his marriage to Mariska Hargitay. This article delivers a fact-checked, timeline-anchored profile covering his career, family, and current activities, with every claim drawn from editorial sources including Wikipedia, People, and ABC News.

Last checked: 2026-06-20

Full Name: Peter Hermann · Born: August 15, 1967 · Nationality: American · Occupation: Actor, Author, Advocate · Known For: Charles Brooks in Younger, Trevor Langan in Law & Order · Spouse: Mariska Hargitay

What is the actor Peter Hermann doing now?

Peter Hermann remains professionally active across several lanes. His most recent major television credit was as Charles Brooks on the TV Land series Younger, which aired from 2015 through 2021. Since then, he has continued recurring guest roles: Hermann appears as defense attorney Trevor Langan on Law & Order: Special Victims Unit, the same set where he met his wife, and as Jack Boyle on Blue Bloods.

In March 2018, HarperCollins published his children’s book If the S in Moose Comes Loose. People magazine reported that the book was introduced to his three kids, framing the project as a family-centric endeavor. Beyond acting and writing, Hermann’s public identity is anchored in these verified activities; no specific ongoing advocacy campaigns are detailed in published editorial sources.

Peter Hermann books

If the S in Moose Comes Loose is Hermann’s sole published book as of 2025. The picture book, aimed at early readers, was released by HarperCollins’s children’s imprint. People notes that Hermann shared a read-aloud of the story with his children, suggesting the book grew out of his own family experiences.

Peter Hermann advocacy work

No specific cause or organization is publicly endorsed in his Wikipedia or People coverage. The absence of a named affiliation means his advocacy activities, if ongoing, are not verifiable from the editorial sources available for this profile.

Are Peter Hermann and Mariska Hargitay still married?

Yes. Peter Hermann married Mariska Hargitay on August 28, 2004, in Santa Barbara, California. The couple met while Hermann guest-starred on Law & Order: Special Victims Unit in 2002, where Hargitay plays Detective Olivia Benson. ABC News confirmed that the two actors met on the set and later began a relationship.

They have three children. Their first son, August, was born on June 28, 2006. The couple also adopted two younger children: a daughter named Amaya and a son named Andrew. As of ABC News’s most recent reporting, the family lives in New York.

Peter Hermann wife

Mariska Hargitay, Hermann’s wife, is a Golden Globe–winning actor best known for her role as Olivia Benson on Law & Order: Special Victims Unit. Their relationship, which began on the SVU set, has been covered extensively by People and ABC News. The two appeared together at the Cannes Film Festival in May 2025 with their three children, as reported by People.

“The two actors met on the set of ‘Law & Order: SVU.'”

— ABC News, reporting on Hermann and Hargitay’s origin story

Mariska Hargitay husband

Hargitay’s husband is Peter Hermann. The two have been married for over two decades—as of 2025, 21 years. People reported that the family attended the Cannes Film Festival together in May 2025, which was publicized as a rare red-carpet appearance for the entire family unit. The relationship has been described as stable and private, with no public separations or legal filings reported by any tier-1 or tier-2 source.

Peter Hermann movies and TV shows

Hermann’s most visible television credits span three networks. According to Wikipedia, he is best known for Charles Brooks in Younger (TV Land, 2015–2021), Trevor Langan in Law & Order: Special Victims Unit (NBC, recurring), and Jack Boyle in Blue Bloods (CBS, recurring).

Peter Hermann Law and Order

Hermann’s recurring role as defense attorney Trevor Langan on Law & Order: Special Victims Unit is his most direct link to the franchise. He first appeared on the show in 2002, the season during which he met Mariska Hargitay. His character has appeared in multiple episodes across several seasons, making him a familiar face to SVU audiences.

Peter Hermann Younger

From 2015 to 2021, Hermann played Charles Brooks, the love interest of Sutton Foster’s character, on the TV Land comedy-drama Younger. The role was his first series-regular lead. People reported that the show’s fan base frequently associates Hermann with the character, which became one of his most recognizable roles.

On film, Hermann appeared in the 2006 feature United 93, directed by Paul Greengrass, which dramatized the September 11 hijacking. That role, though smaller, added a feature-film credit to his primarily television-based resume.

Timeline: Peter Hermann’s life story

• 1967-08-15: Born in New York City
• 2002: Met Mariska Hargitay on the set of Law & Order: SVU
• 2004-08-28: Married Mariska Hargitay in Santa Barbara, California
• 2006-06-28: First son, August, born
• 2015–2021: Starred as Charles Brooks in Younger
• 2018-03: Published children’s book If the S in Moose Comes Loose via HarperCollins
• 2025-05: Appeared at the Cannes Film Festival with Mariska Hargitay and their three children

Stats: Key figures in Peter Hermann’s life

• Years married to Mariska Hargitay: 21 (since 2004)
• Notable TV series: 3 (Younger, Law & Order: SVU, Blue Bloods)
• Children: 3 (all with Mariska Hargitay)
• Age: 57 (born August 15, 1967)

For a deeper look into his life and work, you can read Peter Hermanns biography and career which details his journey from stage to screen.

Frequently asked questions about Peter Hermann

Sources cited

• Wikipedia – Peter Hermann (actor)
• ABC News – Mariska Hargitay and Peter Hermann’s children
• People – All about Mariska Hargitay and Peter Hermann’s relationship
• People – Peter Hermann tag page
• IMDb – Peter Hermann
• All American Speakers – Peter Hermann biography
• HarperCollins – Publisher site