Get to Know Nathan Andersen: A. J. Cook’s Husband and Proud Family Man

We all know A. J. Cook as the smart and strong FBI agent “JJ” on Criminal Minds. But behind her success is a man who has stood by her side for more than two decades — Nathan Andersen. While A. J. is in front of the camera, Nathan lives a more private life. He’s not a celebrity, but he’s a strong, creative, and caring person who has built a beautiful life for himself and his family.

In this article, we’ll take a closer look at Nathan Andersen — not just as A. J. Cook’s husband, but as a proud dad, fashion brand owner, and cancer survivor. You’ll learn where he came from, how he met A. J., and what his life looks like today. Let’s begin.

Nathan Andersen Quick Bio

Who Is Nathan Andersen?

Nathan Andersen is an American entrepreneur, fashion designer, and adventurer. He was born on May 25, 1978, which makes him 47 years old in 2025. He lives in Los Angeles, California, with his wife and two sons. Nathan is someone who loves nature, family time, and doing things that matter.

He is known by many people today as A. J. Cook’s husband, but his own story is just as interesting. Even though he’s married to a famous actress, Nathan prefers to stay out of the spotlight. He chooses a quiet and meaningful life, filled with creativity, love, and personal growth.

Nathan Andersen and A. J. Cook’s Love Story

Nathan and A. J. met back in college at Utah Valley University. They were both studying film, and they even shared a class together. That class changed their lives. A simple meeting turned into a deep connection. Their friendship grew into love, and soon they became a couple.

They got married on August 3, 2001, and have now been together for more than 24 years. In Hollywood, that’s rare. Their relationship is full of love, laughter, and support. They still share fun, sweet moments on social media — often with cute captions, emojis, or jokes. They’re not just husband and wife — they’re best friends.

Nathan Andersen’s Life Before Fame

Nathan was born and raised in the United States, most likely in Utah. He grew up in a home filled with love, adventure, and encouragement. His family included athletes, inventors, and thrill-seekers, which helped shape the person he became. From a young age, he was already exploring, climbing, and dreaming big.

He wasn’t interested in fame or attention. Instead, he wanted to live a full life — a life with meaning, nature, and freedom. These values still guide him today.

Nathan Andersen’s Education and College Life

After finishing high school, Nathan attended Utah Valley University in Salt Lake City. That’s where he studied film — a field full of creativity and storytelling. It was also the place where he met his future wife, A. J. Cook. The two shared the same class, and their bond grew naturally from there.

Even though he didn’t stay in the film industry, his time at the university was important. It helped him discover not just his creative side, but also his path in life — and the person he wanted to spend it with.

Nathan Andersen’s Career Journey

After college, Nathan tried working in Hollywood, just like A. J. He wanted to explore that world and see where it would take him. But after some time, he realized it wasn’t the right fit. The spotlight didn’t excite him the way it did for others. He wanted something more grounded, more creative in a different way.

That’s when he turned toward business. He partnered with a friend in a startup, giving it time and effort for nearly 10 years. The business did well, but Nathan was still searching for something that truly felt like his own.

In 2018, Nathan and his brother Wesley Andersen started a clothing brand called Walter Sky. The brand was built for people like them — travelers, thinkers, and explorers. Walter Sky is all about clean, smart, high-quality clothes that work in many places and climates.

It’s not about fashion trends. It’s about freedom, function, and minimalism. Nathan wanted to create clothes that feel good, last long, and fit any adventure. From deserts to cities, Walter Sky outfits are made for people who live life boldly.

Nathan runs the brand with heart and purpose. He also shares ideas about living simply and focusing on what really matters. His love for design and nature shows in every piece.

Nathan Andersen’s Family Life with A. J. Cook

Nathan Andersen is more than just a husband — he’s a hands-on, caring, and fun-loving dad. He and A. J. Cook have built a strong home together. Their relationship is full of love, support, and laughter. After more than 20 years of marriage, they still post cute and funny moments on social media.

They live a peaceful life in Los Angeles, away from the noise of fame. Nathan supports A. J. through her acting career, and she supports him in his business and personal journey. They’re a true team, and it shows in everything they do together — from raising their kids to cheering each other on in life.

Meet Nathan Andersen’s Children

Nathan Andersen and A. J. Cook have two boys:

• Mekhai Allan Andersen, born in 2008

• Phoenix Sky Andersen, born in 2015

Nathan is a very proud dad. He often shares photos of his sons on Instagram. Sometimes the posts are sweet. Other times, they’re funny. One time, he shared a photo of Phoenix helping wash the car and joked, “Child labor. #carwashforcandy.”

Both boys have appeared on Criminal Minds. Mekhai played JJ’s son, Henry, and Phoenix played baby Michael. Nathan and A. J. clearly enjoy including their kids in their creative world, but they also protect their privacy.

Nathan Andersen’s Battle with Cancer

One of the most powerful parts of Nathan Andersen’s story is his fight with cancer. Around 2019, Nathan revealed that he had been battling thyroid cancer. He posted a photo of the scar on his neck and shared the good news: he was cancer-free.

The post touched many people. Fans, friends, and even strangers wrote kind words. Some shared their own stories and thanked Nathan for being open. His strength and honesty gave hope to others facing the same fight.

A. J. Cook also posted a heartfelt message:

“Cancer picked the wrong guy to mess with. You won, baby! You’re #cancerfree. It’s like the weight of the world has been lifted.”

That moment showed how strong Nathan Andersen really is — not just as a businessman or husband, but as a person.

Nathan Andersen on Social Media

Nathan keeps his personal life low-key, but he’s not completely off the grid. His personal Instagram account, @nathanandy, has fun family posts, nature shots, and little jokes.

He also runs the account for his brand, Walter Sky — @waltersky.co. That page is full of clean, calm, and stylish images of clothing and adventure. You can tell that Nathan loves nature, design, and honest living.

Unlike many public figures, he doesn’t overshare. Instead, he chooses to post things that matter to him — and that’s what makes his page feel real.

Nathan Andersen’s Net Worth and Success

Nathan Andersen has done well in life. His estimated net worth is around $4 million as of 2025. Most of that comes from his clothing brand, Walter Sky, and other business projects he’s worked on over the years.

He’s not the kind of person to show off. Instead, he focuses on creating high-quality work and building a strong, happy family. His wife, A. J. Cook also has a reported net worth of $5 million, thanks to her acting success.

Together, they’ve created a life filled with love, purpose, and stability.

What Nathan Andersen’s Life Looks Like Today

As of now, Nathan lives a peaceful life in California with his wife and kids. He spends time working on Walter Sky, going on adventures, and enjoying nature. He also makes time for family and meaningful moments.

He’s not in the spotlight, but his life is full. He beat cancer, built a business, raised two kids, and supported his wife’s career for over two decades. That’s something to admire.

Nathan Andersen is the kind of person who shows that quiet strength, love, and passion can create a truly successful life.

Final Thoughts

Nathan Andersen may be known as A. J. Cook’s husband, but he’s also a powerful person in his own right. From surviving cancer to starting a fashion brand, and from being a loving dad to building a life of meaning, Nathan shows us what it means to live with purpose.

He keeps things simple. He keeps things real. And that’s what makes his story so special.

Whether you know him from Criminal Minds family posts or from his brand Walter Sky, now you know the heart behind the name — Nathan Andersen.

(FAQs)

How old is Nathan Andersen, and when is his birthday?

Nathan Andersen was born on May 25, 1978, which means he is 47 years old in 2025 — and he’s been married to A. J. Cook for nearly half his life!

How tall is Nathan Andersen?

Nathan Andersen’s exact height is not publicly confirmed — which surprises many fans, considering he’s been in the public eye for over 20 years!

Was Nathan Andersen ever in Criminal Minds?

No, Nathan Andersen has never appeared in Criminal Minds — but his two sons both played JJ’s children on the show, which many viewers don’t realize!

What is Nathan Andersen’s net worth in 2025?

Nathan Andersen has an estimated net worth of $4 million, all earned outside of Hollywood — and mostly from his fashion brand Walter Sky.

How many kids does Nathan Andersen have?

Nathan and A. J. Cook have two sons, and here’s the twist — both of them have acted on Criminal Minds, just like their mom!

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