Peter Hermann has built a career that crosses network television, Broadway, film, and publishing. Many viewers know him from Younger, Law & Order: Special Victims Unit, or Blue Bloods, while others recognize him as Mariska Hargitay’s husband. His story also includes an unusual childhood, Yale, teaching, and behind-the-scenes work before acting became his profession.
Quick answer: Hermann is a New York-born American actor and author. He is best known for playing Charles Brooks on Younger, attorney Trevor Langan on Law & Order: SVU, and Jack Boyle on Blue Bloods. Born August 15, 1967, he turned 59 in August 2026 and has been married to Mariska Hargitay since 2004.
| Key fact | Details |
|---|---|
| Full name | Karl Peter Frederic Albert Hermann |
| Date of birth | August 15, 1967 |
| Age in 2026 | 59 |
| Birthplace | New York City, United States |
| Profession | Actor and author |
| Education | Yale University |
| Best-known TV roles | Charles Brooks, Trevor Langan, Jack Boyle |
| Spouse | Mariska Hargitay |
| Children | Three |
| Career start | 1997 |
Who Is Peter Hermann?
Hermann was born in New York City to German parents, but much of his early childhood was spent in Germany. His family moved there when he was only two months old. He lived in Germany until age 10 and learned English after returning to the United States.
He later attended Yale University. His path after college did not lead straight to an acting set. He taught high school English through Teach For America and also worked as a fact-checker for Vanity Fair. Those jobs give his pre-Hollywood years a different shape from the usual child-star or drama-school story.
His professional acting career began in the late 1990s. One of his first substantial television jobs was on the long-running soap opera Guiding Light, where he appeared from 1997 to 1998.
From Soap Operas to Younger and SVU
The actor’s television career developed through a mix of guest appearances, recurring characters, and long-running roles. In 2002, he began appearing on Law & Order: SVU as defense attorney Trevor Langan. The role became especially significant because it was also where he met Hargitay.
He later joined Blue Bloods in the recurring role of Jack Boyle, Erin Reagan’s former husband. Yet his most sustained leading television part came as Charles Brooks on Younger. Hermann starred in the comedy-drama from 2015 through its final season in 2021.
Charles, the head of publishing company Empirical Press, became central to the show’s romantic and workplace storylines. The part introduced the actor to an audience beyond those who watch network crime dramas.
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Broadway, Film, and Writing
Television is only one part of Hermann’s résumé. His stage credits include major Broadway productions such as Talk Radio in 2007 and War Horse in 2011. His theater work has allowed him to move between long-form television characters and live dramatic performances.
His film credits include United 93, the 2006 drama in which he portrayed passenger Jeremy Glick. He has also appeared in movies including Philomena, Edge of Darkness, and Trouble with the Curve during a career spanning nearly three decades.
He added author to his résumé in 2018. HarperCollins published his illustrated children’s book, If the S in Moose Comes Loose. The playful story reflects a side of his professional life that is easy to miss when focusing only on his television work.
Marriage to Mariska Hargitay
Hermann and Mariska Hargitay met in 2002 after he appeared on Law & Order: SVU. Hargitay was already established as Olivia Benson, while he was playing defense attorney Trevor Langan. Their professional introduction soon became a personal relationship.
He invited her to attend a church service with him for an early date. Hargitay has since recalled that the experience gave her a strong sense that she had found the person she wanted to marry. The couple married in Santa Barbara, California, in August 2004.
Their relationship has remained unusually durable by Hollywood standards. They have also continued supporting each other publicly. In July 2026, People reported that Hermann made a surprise appearance during Hargitay’s final Broadway performance in Every Little Thing.
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Family Life and Their Three Children
The couple has three children. Their eldest son, August, was born in June 2006. They adopted daughter Amaya in April 2011 and welcomed their second son, Andrew, through adoption about six months later.
The family has generally kept their everyday life out of the spotlight, although they occasionally attend major events together. All three children joined their parents at the 2025 Cannes Film Festival for the premiere of Hargitay’s documentary My Mom Jayne.
The family story is also closely tied to Hargitay and Hermann’s discussions of adoption. Hargitay has spoken publicly about families being created in different ways and about how that perspective influenced their own household.
What About His Net Worth?
Celebrity net-worth figures deserve caution because private earnings, assets, taxes, contracts, and liabilities are rarely public.
One widely circulated estimate places the household figure at $100 million. Crucially, the source presenting that number says it represents combined wealth with Hargitay, rather than a verified standalone figure for Hermann. Other 2026 coverage has made the same distinction.
For that reason, treating $100 million as his independently confirmed personal net worth would be misleading. His known income sources include television, film, Broadway, advertising work, publishing, and other entertainment projects.
Why His Career Still Stands Out
Hermann’s career has lasted because it has never depended on a single franchise. He has moved from daytime television to prime-time dramas, romantic comedy, Broadway, film, advertising, and children’s publishing.
That range helps explain why different audiences recognize him for different reasons. A longtime SVU viewer may know Trevor Langan first. A Younger fan is more likely to picture Charles Brooks. Theater audiences may associate him with Talk Radio or War Horse.
His work also shows that a durable acting career does not always require constant headline attention. Recurring roles, stage work, supporting film appearances, and selective lead parts have kept him active since the 1990s.
For more celebrity profiles, TV features, and pop-culture coverage, browse the Mag Vibes entertainment section.
Frequently Asked Questions
He is best known for playing Charles Brooks on Younger, Trevor Langan on Law & Order: SVU, and Jack Boyle on Blue Bloods. His role on Younger ran from 2015 to 2021, while his connection to SVU stretches back to 2002.
He is 59 years old. He was born on August 15, 1967, in New York City and celebrated his 59th birthday in August 2026.
Yes. They married in August 2004 after meeting while working on Law & Order: SVU. Recent 2026 reporting continues to cover them as a married couple.
They have three children: sons August and Andrew and daughter Amaya. August was born in 2006, while Amaya and Andrew joined the family through adoption in 2011.
Public celebrity profiles commonly list him at about 6 feet 5 inches, or 1.96 meters.
Yes. His professional credits date to 1997, several years before they met in 2002. His early work included Guiding Light as well as other television appearances.
