Who Is Nathan Andersen? Meet A.J. Cook’s Husband, the Walter Sky Founder and Dad of Two
Many fans know A.J. Cook as Agent Jennifer “JJ” Jareau from the TV show Criminal Minds. But fewer people know the man who has stood next to her for more than two decades. His name is Nathan Andersen.
Nathan does not chase fame. He keeps a quiet, private life. Still, people search for him often, and that is easy to understand. He has been married to a well-known actress since 2001, he helped build a clothing brand, and he is a father of two sons.
Quick Bio
| Detail | Information |
|---|---|
| Full name | Nathan Andersen |
| Known as | Husband of actress A.J. Cook |
| Birth date | May 25, 1978 (reported by most sources) |
| Nationality | American |
| Education | Studied film at Utah Valley University |
| Work | Entrepreneur and clothing designer |
| Known business | Walter Sky (clothing line) |
| Wife | A.J. Cook (Andrea Joy Cook) |
| Wedding date | August 3, 2001 |
| Children | Two sons: Mekhai Allan Andersen and Phoenix Sky Andersen |
Who Is Nathan Andersen?
Nathan Andersen is an American entrepreneur and clothing designer. Most websites say he was born on May 25, 1978, in the United States. That would make him 48 years old today.
He is best known as the husband of Canadian actress A.J. Cook. But he is not only “the husband of a star.” He has his own work and his own creative side. He studied film, and later he put his energy into fashion and business.
Nathan also likes to stay out of the spotlight. He does not give many interviews, and his social media is mostly about family, friends, and everyday life. Because of this, there is not a lot of detailed public information about him. We will only share what has been reported by trusted sources, and we will be clear when something is uncertain.
How Nathan Andersen and A.J. Cook Met
The couple’s love story started at college. According to Wikipedia and other reports, Nathan and A.J. met in a film class at Utah Valley University. Both of them were studying there at the time.
A.J. was already working as a young actress. She had appeared in The Virgin Suicides in 1999, so she was building her career while she was a student. Nathan was studying film and communications.
They dated for some time and then decided to get married. It was a story of two young people who found each other early in life and stayed together.
The Wedding
Nathan Andersen and A.J. Cook got married on August 3, 2001. Wikipedia describes Nathan as her long-time boyfriend at the time of the wedding.
This date is important because it shows how long the couple has been together. In August 2026, they reached their 25th wedding anniversary. In Hollywood, where many relationships end quickly, that is a very long time.
A.J. has shared sweet anniversary messages about Nathan on Instagram over the years. For example, she celebrated their 16th anniversary in 2017 with a public post. These small moments show that the two still enjoy each other’s company.
What Does Nathan Andersen Do for Work?
Nathan’s main career is in business and fashion. Several sources, including Legit.ng, say that he is the founder of a clothing line called Walter Sky. Another report says he co-founded it.
Here is what we can say safely:
- Walter Sky is a clothing brand connected to Nathan Andersen.
- He is described as a designer and entrepreneur.
- The brand has grown over the years, based on the reports we found.
Some websites say Nathan is a film director, producer, or editor. This may be because he studied film. However, we could not find strong proof of a big film career. Other pages even give wrong details, like calling him a Canadian actor or saying he went to a different university. When sources do not agree, it is best to trust the ones that match well-known facts, like his clothing work and his time at Utah Valley University.
Nathan Andersen’s Family
Family is a big part of Nathan’s life. He and A.J. Cook have two sons:
- Mekhai Allan Andersen: the older son, born in 2008 according to some sources.
- Phoenix Sky Andersen: the younger son, born in 2015.
The family often goes to red carpet events together. For example, they were seen at the premiere of Wonder Park in March 2019. Photos from that night show Nathan, A.J., and both boys.
The Boys on Criminal Minds
Here is a fun fact. Both sons also appeared on their mother’s TV show. Phoenix played Michael LaMontagne, and Mekhai played Henry LaMontagne. On the show, these are the children of JJ, the character A.J. plays.
So in a way, the show became a family project. It also means fans saw Nathan’s real children growing up on screen.
Nathan Andersen and His Health Story
Some articles call Nathan a cancer survivor. Legit.ng, for example, has a section about him “beating cancer.” The couple has spoken about hard times in their lives, but Nathan has kept the details private.
Because this is a personal topic, we will not guess or add details that are not confirmed. What matters is that he is described as a survivor and that he has returned to his normal life with his family.
Life as a Public Figure’s Husband
Being married to a TV star is not always easy. People take photos, ask questions, and talk about your life. Nathan has handled this in a calm way.
He appears with A.J. at some events, like charity galas and film premieres. For example, they attended the AltaMed Power Up “We Are the Future” gala together. But most of the time, he stays away from the cameras.
This choice seems to help the family. The couple has kept a steady marriage and a happy home while A.J. continues her acting career.
What We Know About Nathan Andersen’s Net Worth
You may see websites that give a number for Nathan’s net worth. One page says that he and A.J. together have a net worth of over 4.5 million dollars. Be careful with numbers like this. These sites usually guess, and they do not show clear proof.
What we can say is that both of them have worked for many years. A.J. has a long acting career, and Nathan has his clothing business. Neither of them has shared official money details.
Why People Are Interested in Nathan Andersen
There are a few simple reasons why fans search for his name:
- He is part of a long marriage. Many people admire couples who stay together for decades.
- He supports A.J. quietly. Fans like seeing a partner who does not need the spotlight.
- He has his own work. His clothing line shows that he has built something of his own.
- His sons were on TV. Fans of Criminal Minds feel a connection to the whole family.
A Note on Accuracy
If you search for Nathan Andersen online, you will find many pages that repeat each other and some that disagree. Birth dates are a good example. Most pages say May 25, 1978, but a few give other dates, like August 20 or August 31.
For this reason, we focused on facts that appear in many places, such as his marriage date, his time at Utah Valley University, his clothing line, and his two sons. We left out facts that only appear on one weak page.
Final Thoughts
Nathan Andersen is more than “A.J. Cook’s husband.” He is an entrepreneur, a clothing designer, and a father who prefers a calm life away from the cameras.
He met A.J. in college, married her in 2001, and has built a family with her for 25 years. Along the way, he started his own business and raised two sons who even got a small taste of TV life.
If new details about Nathan come out, it will probably be because he chooses to share them. Until then, what we know shows a down-to-earth man who puts his family first.
Frequently Asked Questions
Who is Nathan Andersen?
Nathan Andersen is an American entrepreneur and clothing designer. He is the husband of actress A.J. Cook, who plays JJ on Criminal Minds.
When did Nathan Andersen marry A.J. Cook?
They got married on August 3, 2001. They met in a film class at Utah Valley University before the wedding.
Does Nathan Andersen have children?
Yes. He and A.J. Cook have two sons, Mekhai Allan Andersen and Phoenix Sky Andersen.
What does Nathan Andersen do for a living?
He works as an entrepreneur and designer. He is linked to the clothing line Walter Sky.
How old is Nathan Andersen?
Most sources say he was born on May 25, 1978, so he is 48 years old. A few websites give different dates, so this may not be fully certain.
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