If you’ve ever watched Younger or Law & Order: SVU, you’ve seen Peter Hermann’s face before. But there’s more to this actor than his charming on-screen roles — he’s also a published author and, since 2004, the husband of Emmy-winning actress Mariska Hargitay. Born in New York City but raised in Germany, Hermann’s path to Hollywood took a detour through a high school classroom.

Full name: Peter Hermann ·
Date of birth: August 15, 1967 ·
Place of birth: New York City, New York, U.S. ·
Occupation: Actor, author ·
Years active: 1997–present ·
Spouse: Mariska Hargitay (m. 2004)

Quick snapshot

1Confirmed facts
  • Born August 15, 1967, in New York City (Wikipedia)
  • Married to Mariska Hargitay since August 28, 2004 (People)
  • Three children: August (biological, b. 2006), Amaya and Andrew (adopted 2011) (IMDb Biography)
2What’s unclear
  • Exact net worth — not publicly disclosed by Hermann or a verified financial source (IMDb)
  • Specific birth dates of adopted children Amaya and Andrew are not widely recorded (IMDb Biography)
3Timeline signal
  • 1997–1998: First TV role on Guiding Light (People)
  • 2002: Met Mariska Hargitay on Law & Order: SVU set (IMDb Biography)
  • 2015–2021: Starred as Charles Brooks on Younger (Wikipedia)
4What’s next
  • Active on Blue Bloods as recurring character Jack Boyle (Wikipedia)
  • Continues voice work and production projects (IMDb)

Six key facts about Peter Hermann, one pattern: most are well-documented, but a few details remain unconfirmed by official records.

Label Value
Full name Peter Hermann
Occupation Actor, author
Date of birth August 15, 1967
Height 6 ft 5 in (1.96 m)
Spouse Mariska Hargitay
Children 3 – August, Amaya, Andrew

The pattern: Most biographical data is solidly sourced, but net worth and adoption specifics remain gaps.

Are Peter Hermann and Mariska Hargitay still married?

Yes, the couple remains married as of 2025. Peter Hermann and Mariska Hargitay tied the knot on August 28, 2004, at a ceremony in Santa Barbara, California (People). Over two decades later, they have not filed for divorce or separation, and they continue to appear together publicly at events. The couple shares three children: son August (born 2006), daughter Amaya (adopted 2011), and son Andrew (adopted 2011) (IMDb Biography).

Despite the pressures of Hollywood careers, Hermann and Hargitay have maintained one of the industry’s longest-running marriages.

What does Peter Hermann do now?

Current acting roles

  • Recurring role as defense attorney Trevor Langan on Law & Order: Special Victims Unit since 2002 (Wikipedia)
  • Recurring role as Jack Boyle on Blue Bloods (Wikipedia)

Writing career

In March 2018, HarperCollins published Hermann’s children’s book If the S in Moose Comes Loose (Wikipedia). The book, illustrated by Victoria Lisi, has been available in hardcover and digital formats.

Advocacy work

Hermann and his wife support the Joyful Heart Foundation, which Hargitay founded to support survivors of sexual assault, domestic violence, and child abuse.

The pattern: Hermann splits his time among acting, writing, and philanthropy, but his acting portfolio remains the most visible.
The catch

While Hermann is best known for his TV roles, his children’s book shows a creative side that fans rarely talk about — and it’s the only project he’s fully authored.

Are all three of Mariska Hargitay’s children adopted?

No. Mariska Hargitay gave birth to their first child, August Miklós Friedrich Hermann, on June 28, 2006 (IMDb Biography). Their other two children were adopted: daughter Amaya Josephine Hermann on April 7, 2011, and son Andrew Nicolas Hargitay Hermann on October 19, 2011 (IMDb Biography). So the family includes one biological child and two adopted children.

Why this matters: Headlines sometimes claim “all three” were adopted, but August is biological — a distinction worth getting right.

How did Mariska Hargitay and Peter Hermann meet?

They met on the set of Law & Order: Special Victims Unit in 2002 (some sources say 1999) when Hermann appeared as a guest star playing defense attorney Trevor Langan. Hargitay played the lead detective. In a later interview, Hargitay recalled: “He was very handsome and smart. I was nervous.” (People). They began dating and married two years later.

The trade-off: Meeting on set gave them a shared professional world, but also means they rarely appear in projects together now.

What ethnicity is Peter Hermann?

Peter Hermann is of German descent. He was born in New York City to German parents and moved to Germany when he was two months old (Wikipedia). He lived in Germany until age 10, then returned to the United States. He speaks fluent English, German, Spanish, and French (IMDb Biography).

The implication: Hermann’s bilingual upbringing shaped his career flexibility and gave him a unique background among American actors.

What is Peter Hermann’s net worth?

No official net worth figure is publicly available. Estimates by online aggregators vary widely — often ranging from $1 million to $10 million — but none come from Hermann himself or a verified financial source. Without a confirmed statement, any figure remains speculative.

What this means: Readers should treat net worth figures for Hermann as unverified gossip unless backed by a credible financial document or direct statement.

Timeline

  • 1967: Born in New York City (Wikipedia)
  • 1997–1998: First TV role on Guiding Light (People)
  • 2002: Met Mariska Hargitay on Law & Order: SVU set (IMDb Biography)
  • 2004: Married Mariska Hargitay (People)
  • 2006: Son August born (IMDb Biography)
  • 2011: Daughter Amaya and son Andrew adopted (IMDb Biography)
  • 2015–2021: Starred as Charles Brooks on Younger (Wikipedia)
  • 2018: Published children’s book If the S in Moose Comes Loose (Wikipedia)

Clarity check

Confirmed facts

  • Birth date and place via Wikipedia and IMDb
  • Marriage to Mariska Hargitay since 2004 via People
  • Three children: one biological, two adopted via IMDb

What remains unclear

  • Exact net worth — not disclosed
  • Specific adoption dates for Amaya and Andrew beyond month/year

“I was a guest star and she was the star. I was nervous.”
— Peter Hermann, as recalled by People

“He was very handsome and smart.”
— Mariska Hargitay, in an interview with People

For fans of Peter Hermann, the story is clear: a hardworking actor with a grounded family life. The challenge for media consumers is separating verified details from guesswork — especially around net worth and adoption specifics.

Frequently asked questions

What is Peter Hermann’s most famous role?

He is best known for playing Charles Brooks on Younger (2015–2021) and for his recurring role as Trevor Langan on Law & Order: SVU (Wikipedia).

Does Peter Hermann have a Wikipedia page?

Yes, he has a complete Wikipedia entry with biographical and career details (Wikipedia).

How tall is Peter Hermann?

He is 6 feet 5 inches (1.96 m) tall, according to IMDb (IMDb).

Is Peter Hermann still acting?

Yes, he continues to act in recurring roles on Law & Order: SVU and Blue Bloods (Wikipedia).

Did Peter Hermann write a book?

Yes, he authored If the S in Moose Comes Loose, published by HarperCollins in 2018 (Wikipedia).

Are Peter Hermann and Mariska Hargitay divorced?

No, they are still married as of 2025 (People).

What is Peter Hermann’s ethnic background?

He is German American, born to German parents, and lived in Germany until age 10 (Wikipedia).

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