Mary Mouser's 'Husband' Revealed: The Shocking Real-Life Engagement To A Cobra Kai Co-Star

The question of who Mary Mouser’s husband is has been a top search query for years, fueled by her on-screen romances and private personal life. As of December 2025, the *Cobra Kai* star is not yet married, but she has made a major, headline-grabbing step toward the altar. In a surprise announcement that delighted fans globally, Mary Mouser confirmed her engagement to her long-time partner and on-screen rival, *Cobra Kai* co-star Tanner Buchanan, in February 2025. This real-life Hollywood romance has officially moved from a rumored pairing to a confirmed, committed relationship, with a wedding expected in the near future. The news of the engagement settled years of speculation about her relationship status and who the actress behind Samantha LaRusso was truly dating. Their journey from co-stars to an engaged couple is one of the most compelling stories to emerge from the *Karate Kid* universe revival, cementing their status as a fan-favorite power couple. Mouser and Buchanan kept their relationship largely private for years, making the public confirmation of their engagement a significant and exciting update for their respective fan bases.

Mary Mouser: Complete Biographical Profile

Mary Matilyn Mouser is an American actress who rose to international fame for her role as Samantha "Sam" LaRusso in the Netflix series *Cobra Kai*. Her career, however, spans over two decades, starting from a very young age in her home state of Arkansas.

• Full Name: Mary Matilyn Mouser
• Date of Birth: May 9, 1996
• Age (as of 2025): 29
• Birthplace: Pine Bluff, Arkansas, USA
• Nationality: American
• Parents: Scott Mouser (Father) and Tina Mouser (Mother)
• Siblings: Aaron Parker Mouser (Brother) and Laura Ashley Mouser (Sister)
• Occupation: Actress, Influencer
• Known For: Samantha LaRusso in *Cobra Kai*, Lacey Fleming in *Body of Proof*
• Partner: Tanner Buchanan (Engaged)

From Arkansas to the All Valley: Mary Mouser’s Career Journey

Mary Mouser's acting career began when she was just five years old. Her first notable role was as a photo-double for Mel Gibson’s daughter in the 2002 film *Signs*. This early start paved the way for a steady stream of television work, establishing her as a reliable young talent in Hollywood. She quickly became known for her voice work, including the main role of Eloise in *Eloise: The Animated Series* from 2006 to 2007. Mouser also landed guest-starring and recurring roles in several major network dramas.

Key Early Television Roles:

• Without a Trace (2004)
• Scrubs (2005)
• Ghost Whisperer (2005)
• NCIS (2008)
• Criminal Minds (2009)

Her career took a significant turn when she secured the main role of Lacey Fleming in the medical drama *Body of Proof*, appearing in 37 episodes. However, it was her casting as Sam LaRusso in the 2018 YouTube Red (now Netflix) series *Cobra Kai* that launched her into global stardom. As the daughter of Daniel LaRusso, her character is central to the revival of the *Karate Kid* legacy, balancing drama, comedy, and intense martial arts sequences.

The Real-Life Romance: Mary Mouser and Tanner Buchanan's Engagement

The public interest in Mary Mouser's love life intensified due to her on-screen relationships in *Cobra Kai*. Her character, Sam LaRusso, is involved in a complex love triangle with Miguel Diaz and Robby Keene, the latter of whom is played by Tanner Buchanan. This on-screen chemistry fueled years of rumors about a real-life romance between Mouser and Buchanan.

A Timeline from Co-Stars to Fiancés

The relationship between Mary Mouser and Tanner Buchanan is a classic case of a friendship blossoming into something more.

2017: Meeting on Set

The two actors first met while filming the first season of *Cobra Kai*. Mouser played Sam LaRusso, and Buchanan played Robby Keene. They quickly developed a strong friendship, often sharing behind-the-scenes content that highlighted their close bond.

Years of Speculation (2018–2024)

As their characters' relationship in the show became a major plot point, the rumors about them dating in real life exploded. Both actors consistently dodged questions about their romantic status, preferring to keep their personal lives separate from the show's narrative. This created a high level of curiosity among fans who wished for the on-screen couple to become a real-life pairing.

February 2025: The Surprise Engagement Announcement

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In a significant update, Mouser and Buchanan officially confirmed their relationship and announced their engagement in a joint Instagram post. The news was revealed shortly before the premiere of the final season of *Cobra Kai*, making it a "hard launch" of their long-rumored romance. They shared photos showcasing their engagement rings and spoke about the special moment in their lives. This announcement confirmed that Tanner Buchanan is the man who will become Mary Mouser's husband.

Why the "Husband" Question is Now a "Fiancé" Answer

The intense focus on "Mary Mouser husband" stems from the secretive nature of their relationship and the public's investment in the *Cobra Kai* narrative. For many fans, the lines between the characters and the actors are often blurred. The fact that the actors playing the two main romantic rivals—Sam LaRusso (Mouser) and Robby Keene (Buchanan)—are engaged in real life adds a fascinating layer to the *Karate Kid* legacy. It is a true Hollywood love story that started on the set of a martial arts drama.

What’s Next for the Engaged Couple?

With the engagement confirmed, fans are now eagerly awaiting details about the wedding of Mary Mouser and Tanner Buchanan. While the couple has remained private about their wedding plans, the public announcement of their engagement suggests they are ready to share this next chapter with the world. The final season of *Cobra Kai* is expected to be a major focus for both stars, but their confirmed engagement means that a real-life happy ending is on the horizon. The journey of Mary Matilyn Mouser, from a child actress in Pine Bluff, Arkansas, to a global star and soon-to-be wife of her co-star, is a testament to her talent and a delightful surprise for her dedicated followers.