When you think of A. J. Cook, you probably picture her as the strong and smart FBI agent Jennifer “JJ” Jareau on Criminal Minds. But behind her success is a man who has supported her every step of the way—Nathan Andersen. While A. J. shines in front of the camera, Nathan leads a quieter life behind the scenes. He’s more than just A. J. Cook’s husband; he’s an entrepreneur, a loving father, and a cancer survivor. In this article, we’re going to take a closer look at Nathan Andersen’s life, his career, his relationship with A. J., and how he’s made a name for himself in his own right.
Nathan Andersen Quick Bio
| Full Name | Nathan Andersen |
| Date of Birth | May 25, 1978 |
| Age (2026) | 48 years old |
| Nationality | American |
| Occupation | Entrepreneur, Fashion Designer |
| Brand | Co-founder of Walter Sky |
| Net Worth (2026) | $4 million |
| Spouse | A. J. Cook |
| Marriage Date | August 3, 2001 |
| Children | Mekhai Allan Andersen, Phoenix Sky Andersen |
| Residence | Los Angeles, California |
| Health | Cancer survivor (thyroid, 2019) |
Nathan Andersen
Nathan Andersen is well-known as A. J. Cook’s husband, but his journey is just as fascinating as hers. While A. J. gained fame on Criminal Minds, Nathan chose to live a life of meaning and purpose outside of the spotlight.
Nathan has always supported A. J. in her career. He’s been her rock, helping her through tough moments, including her busy work schedule and the challenges that come with being in the public eye. Their relationship is a beautiful example of how strong love and support can create a stable foundation, even when life gets hectic.
Nathan’s story is one of success, love, and adventure, but it’s also about being a husband who quietly stands behind his wife, cheering her on. Together, they have built a life that is full of joy, family, and achievements.
Early Life of Nathan Andersen
Nathan Andersen was born on May 25, 1978, making him 48 years old in 2026. He grew up in the United States, and from a young age, he was exposed to a variety of activities that encouraged adventure and creativity. His family consisted of athletes, inventors, and thrill-seekers, which helped shape Nathan into the person he is today.
While many people might think Nathan grew up with dreams of fame or fortune, that wasn’t the case. Instead, he was always interested in living a meaningful life, full of exploration, nature, and family time. His childhood was full of climbing, exploring, and chasing big dreams. These early experiences stayed with him, guiding his future choices.
How Nathan Andersen Met A. J. Cook
Nathan’s story took a big turn when he met A. J. Cook at Utah Valley University. They were both studying film, and it wasn’t long before their paths crossed in class. They shared a bond over their studies, which eventually grew into a deep connection.
Their friendship blossomed, and soon they became a couple. From college sweethearts to life partners, Nathan and A. J. built a solid foundation together. They got married on August 3, 2001, marking the beginning of a beautiful and supportive partnership that has lasted more than two decades. In Hollywood, that’s a rare and special thing.
Their relationship has always been full of love, laughter, and understanding. They’ve stood by each other through thick and thin, and their connection continues to grow stronger with time.
Marriage to A. J. Cook
After being married for over 20 years, Nathan and A. J. Cook’s marriage is still going strong. They’ve built a life together that is based on mutual respect and support. Despite A. J.’s fame, they have managed to keep their family life private and low-key.
They are more than just a married couple; they are best friends. Their relationship is filled with humor, love, and a deep connection that is hard to find in the spotlight. They share fun moments on social media, posting cute pictures, funny jokes, and heartfelt captions. A. J. once wrote on Instagram for their anniversary, “16 years ago today, I married this fella… We were babies!! Yet, somehow, here we stand. Solid. Steady. Secure.”
Their bond is a testament to the strength of their relationship. It’s not just about being together for years; it’s about growing, supporting, and thriving together through every stage of life.
Nathan Andersen’s Career Journey Before Fame
Before marrying A. J. Cook, Nathan had his own aspirations and dreams. After high school, he attended Utah Valley University, where he studied film. At the time, he was interested in exploring a career in the entertainment industry, much like his future wife.
Nathan did try his hand in Hollywood, but he quickly realized that the limelight wasn’t what he wanted. The spotlight didn’t excite him the way it did for others. Instead, he found a new passion—business. After leaving the entertainment industry behind, Nathan began exploring different career paths.
His journey eventually led him to become an entrepreneur. He spent nearly a decade working in a startup business, helping it grow and thrive. Even though the business did well, Nathan felt there was something more he wanted to do—something that combined his creativity with his love for adventure and travel.
The Birth of Walter Sky
In 2018, Nathan co-founded Walter Sky, a clothing brand that quickly gained attention. Together with his brother Wesley Andersen, Nathan created a brand that was all about minimalist, high-quality clothing for travelers and adventurers. Walter Sky was designed for people who appreciate simplicity, functionality, and style—clothes that work in various climates and environments.
The brand focuses on creating clean, smart, and versatile pieces that can be worn in a variety of settings, from cities to deserts. It’s not about following trends; it’s about creating clothing that lasts and fits into a lifestyle of freedom and exploration. Nathan’s passion for nature, adventure, and design is woven into every piece.
Running Walter Sky has been a dream come true for Nathan. It allows him to combine his love for business, fashion, and travel. The brand has grown over the years and continues to reflect Nathan’s values of simplicity, quality, and exploration.
Nathan Andersen’s Personal Interests and Adventures
When Nathan isn’t working on his fashion brand, he’s out exploring the world. He’s a true adventurer at heart. Growing up in a family that loved nature and adventure, Nathan developed a deep appreciation for the outdoors.
Whether it’s hiking, traveling, or just spending time in nature, Nathan’s personal life is filled with exciting adventures. He’s always seeking new experiences and loves to share his adventures with his family. His love for nature also influences his work, as he designs clothes that are perfect for the adventurous spirit.
Overcoming Cancer
One of the most inspiring parts of Nathan Andersen’s life story is his fight with cancer. In 2019, Nathan shared a personal post on social media revealing that he had been battling thyroid cancer. This was a tough moment for his family, but Nathan faced it with incredible strength.
A. J. Cook, always supportive, posted a heartfelt message saying, “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.” This post showed how strong Nathan really is—not just as a husband and father, but as a person. His victory over cancer inspired many others who were going through similar struggles.
Nathan’s honesty about his battle with cancer was powerful. It not only showed his strength but also offered hope to others facing difficult challenges. Being cancer-free is a huge milestone, and Nathan’s journey through it has made him even more admirable in the eyes of his family and fans.
Family Life with A. J. Cook and Their Two Sons
Nathan Andersen is a proud father who loves spending time with his family. He and A. J. Cook have two wonderful sons: Mekhai Allan Andersen (born 2008) and Phoenix Sky Andersen (born 2015). Nathan is very hands-on with his children, often sharing moments of their lives on Instagram.
Despite A. J.’s fame, Nathan and A. J. keep their children’s lives private, ensuring they have a sense of normalcy away from the public eye. Their kids have even appeared on Criminal Minds—Mekhai played JJ’s son, Henry, and Phoenix played baby Michael. It’s clear that family is incredibly important to Nathan. He enjoys being a father and sharing little moments with his sons, like when Phoenix helped him wash the car, a moment Nathan jokingly captured as “child labor #carwashforcandy.”
Nathan and A. J. have built a beautiful home filled with love, support, and lots of laughter. It’s a place where their family can thrive and create memories together.
Nathan Andersen’s Role in A. J. Cook’s Career
While Nathan Andersen is known for his own career and accomplishments, he has also been a huge support for A. J. Cook throughout her acting journey. A. J. Cook’s role as Jennifer Jareau on Criminal Minds brought her fame, but Nathan has always been there behind the scenes, supporting her in everything she does.
In many ways, Nathan’s role as a supportive partner has allowed A. J. to shine even brighter. Their teamwork is a key part of their strong relationship. Whether it’s offering advice, attending events together, or just being a listening ear, Nathan is a true partner in A. J.’s success. Their relationship shows how mutual support can help both people grow and succeed in their personal and professional lives.
Nathan Andersen’s Social Media Presence
While Nathan is not someone who seeks attention, he does share glimpses of his life on social media. His personal Instagram account, @nathanandy, features family moments, nature shots, and some fun, lighthearted posts. He also runs the social media for his brand, @waltersky.co, where he shares the journey of Walter Sky and the brand’s minimalist clothing.
Nathan’s social media presence is not about oversharing; it’s about connecting with his followers in a meaningful way. His posts are often genuine and reflect his love for nature, family, and his work. By keeping his social media real and focused on what matters to him, Nathan offers a glimpse into his private, yet fulfilling life.
Nathan Andersen’s Net Worth and Financial Success
Nathan Andersen has worked hard to build his career and create a successful life for his family. As of 2026, his estimated net worth is around $4 million. Much of this wealth comes from his business ventures, particularly his fashion brand Walter Sky.
Nathan has always been focused on creating high-quality work, and that philosophy has paid off. He has a successful business that reflects his values of simplicity, adventure, and quality. While he may not be as publicly known as his wife, A. J. Cook, Nathan’s entrepreneurial journey shows that success can be built quietly and steadily.
His wealth is not just a result of his business success, but also from his dedication to his passions. He focuses on creating things that matter and that last, whether it’s a business or his family life. Together with A. J., they’ve built a life that is both successful and full of love.
What Nathan Andersen’s Life Looks Like Today
Today, Nathan Andersen enjoys a peaceful and fulfilling life with his family in Los Angeles, California. He spends his time working on Walter Sky, going on adventures, and cherishing moments with his wife and children. Nathan also makes time for nature and outdoor activities, which have always been a big part of his life.
Although Nathan is not in the public eye as much as A. J., his life is rich with meaning and purpose. He’s a loving father, a supportive husband, a successful entrepreneur, and a man who has overcome great challenges. Nathan’s life shows that success isn’t just about fame or money—it’s about creating a life full of love, growth, and passion.
Final Thoughts
Nathan Andersen may be best known as A. J. Cook’s husband, but his own story is one of inspiration. From overcoming cancer to building a successful fashion brand and raising two wonderful sons, Nathan has shown that life is about much more than just being in the spotlight. His love for adventure, his dedication to his family, and his success as an entrepreneur make him a remarkable man in his own right.
Nathan’s story teaches us valuable lessons about living with purpose, facing challenges head-on, and supporting those we love. Whether you know him as A. J. Cook’s husband or from his brand Walter Sky, Nathan Andersen’s life is a testament to the power of love, hard work, and a meaningful life.
(FAQs)
How much is Nathan Andersen worth?
Nathan Andersen’s net worth is around $4 million in 2026. Most of this comes from his fashion brand Walter Sky and other business projects.
How old is Nathan Andersen?
Nathan Andersen was born on May 25, 1978, which makes him 48 years old in 2026.
What is Nathan Andersen’s connection to A. J. Cook?
Nathan Andersen is married to A. J. Cook, the actress who plays “JJ” on Criminal Minds. They’ve been married since August 3, 2001 and have two kids together.
What happened in 2001 for Nathan Andersen?
In 2001, Nathan Andersen married A. J. Cook. They met in college and have been together ever since.
Where does Nathan Andersen live today?
Nathan Andersen lives in Los Angeles, California, with his family. They enjoy a quiet life, away from the spotlight, focusing on family and Nathan’s business.
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