Mary Mouser has been captivating audiences since childhood, with a career spanning film and television. Whether you know her from the heartwarming family film “Alexander and the Terrible, Horrible, No Good, Very Bad Day” or the action-packed “Cobra Kai,” Mouser’s talent and versatility shine through. This comprehensive look explores her filmography, from her early voice acting roles to her leading lady status. We’ll delve into her most popular projects, uncover surprising facts about her career, and explore what makes her such a beloved actress. So, get ready to dive into the world of Mary Mouser!


Mary Mouser began her career at a young age and has lent her voice to several notable animated projects. One of her early voice acting roles was as Eloise in the animated film “Eloise Goes to School” (2006). She also voiced the character of Alyssa in the animated series “Betsy’s Kindergarten Adventures” (2007-2008). Mouser’s talent in voice acting was evident from an early age, setting the stage for her later successes in both live-action and animated roles.

In terms of live-action debuts, Mouser made her first significant appearance in the popular TV series “Monk” in 2005, portraying a character named Gracie Hebert in the episode “Mr. Monk Goes to a Wedding.” This marked her introduction to mainstream television audiences. Shortly after, she appeared in another well-known series, “Scrubs,” playing the role of Maddie in the episode “My Cabbage” (2007). These early live-action roles showcased Mouser’s versatility and laid the groundwork for her future endeavors in the industry.

While Mouser’s career continued to evolve, her presence in television became more pronounced with roles in various shows. Notably, she appeared in the hit series “Body of Proof” in 2011, playing the recurring character Lacey Fleming. This role further solidified her standing as a promising young actress in Hollywood. As her career progressed, Mouser continued to take on diverse roles, ultimately leading to her breakout performance as Samantha LaRusso in the Netflix series “Cobra Kai.”



Mary Mouser has had a diverse filmography spanning both live-action and voice acting roles. In terms of voice acting, she has contributed her talents to various animated films, including “Pom Poko” (2005), “Son of the Mask” (2005), “Tarzan II” (2005), and “Dragon Hunters” (2008). Her ability to bring characters to life through voice work was evident early in her career, as she lent her voice to a range of roles, from additional voices to more prominent characters like Alvey Avery in “Son of the Mask.”

In live-action films, Mouser has showcased her acting skills in a variety of genres. She appeared in “Mr. Fix It” (2006) and “LA Blues” (2007), demonstrating her versatility in both comedic and dramatic roles. Additionally, she starred in the short film “Penny Dreadful” (2007) and portrayed Julia in “Ball Don’t Lie” (2008), further expanding her repertoire.

One of Mouser’s notable live-action film roles is in “Gates of Darkness” (2018), where she portrayed the character Michelle. While details about her role and the film’s plot may vary, Mouser’s involvement underscores her continued presence in the film industry. “Gates of Darkness” likely provided her with another opportunity to showcase her acting abilities and contribute to a compelling cinematic narrative.

Throughout her career, Mary Mouser has consistently delivered memorable performances across various mediums, solidifying her reputation as a talented actress in both voice acting and live-action roles. 


Mary Mouser’s television career has been marked by a diverse array of roles across various genres. She began her television journey with guest appearances in popular shows like “Without a Trace,” “Scrubs,” and “Monk,” showcasing her acting abilities from a young age. Notably, she portrayed Kelly Gibbs, the younger version of the character played by her sister, in the long-running series “NCIS” from 2005 to 2012, appearing in nine episodes.

In 2007, Mouser landed her first main role on television in the series “Life Is Wild,” where she played Mia Weller, one of the children in a blended family living in a South African game reserve. She continued to make appearances in various shows such as “Ghost Whisperer,” “Drop Dead Diva,” and “The Fosters,” where she portrayed Sarah in multiple episodes.

However, it was her role as Lacey Fleming in the medical drama “Body of Proof” (2011-2013) that solidified her presence on television screens. As Dr. Megan Hunt’s daughter, Lacey provided emotional depth to the series and showcased Mouser’s acting range. Her portrayal earned her recognition and established her as a talented young actress in the industry.

Mouser’s career reached new heights with her role as Samantha LaRusso in the critically acclaimed series “Cobra Kai” (2018-present). Serving as a continuation of the “Karate Kid” film series, “Cobra Kai” explores the lives of characters from the original films, including Samantha, the daughter of Daniel LaRusso. Mouser’s performance as Samantha has been widely praised, earning her a dedicated fanbase and further cementing her status as a rising star in television.

In addition to her scripted roles, Mouser has also appeared in reality television, such as her guest appearance as herself on “Nailed It!” in 2022. Through her diverse television roles, Mary Mouser has demonstrated her versatility and talent as an actress, leaving a lasting impression on audiences across different genres.


While Mary Mouser hasn’t won any major awards yet, her talent has been recognized throughout her career. Here’s a breakdown of her accolades:

Young Artist Awards: These awards recognize achievements of young performers. Mouser received nominations in 2008 for her performances in  “A Stranger’s Heart” (Best Performance in a TV Movie) and “Life Is Wild” (Best Performance in a TV Series).

Critical Acclaim: Particularly for her role as Samantha LaRusso in “Cobra Kai,” Mouser has garnered positive reviews from critics. They praise her portrayal of the character’s growth and development.


Mary Mouser’s personal life reflects a blend of professional connections and familial ties within the entertainment industry. She has been in a long-term relationship with actor Brett Pierce since reportedly meeting at a party in 2015, showcasing a connection beyond the screen. Additionally, Mouser comes from an acting family, with siblings Aaron Parker Mouser and Laura Ashley Mouser also pursuing careers in acting. This familial connection likely provides a supportive environment for Mouser as she navigates her own career.

In terms of education, Mouser’s early immersion into the world of acting led to her being homeschooled by her mother. This educational approach enabled her to balance her academic studies with her burgeoning acting career, allowing her to pursue opportunities in the industry while continuing her education in a flexible manner. Mouser’s upbringing and familial support have likely played significant roles in shaping her career trajectory and contributing to her success in the entertainment industry.


1. When and where was Mary Mouser born?

Mary Mouser was born on May 9, 1996, in Pine Bluff, Arkansas, USA.

2. What is Mary Mouser best known for on television? 

Mary Mouser is currently most recognized for her role as Samantha LaRusso in the Netflix series “Cobra Kai” (2018-present).

3. Who is Mary Mouser’s character in Cobra Kai? 

Samantha LaRusso is the daughter of the original Karate Kid protagonist, Daniel LaRusso. She becomes a central character, training in karate and navigating high school life.

4. Is Mary Mouser active on social media? 

Yes! Mary Mouser is active on Instagram (@marymmouser) and Twitter (@MaryMMouser).

5. How much is Mary Mouser net worth?

$2 million.


Mary Mouser’s career trajectory shows an impressive dedication to the craft of acting. From charming audiences in heartwarming family films and lending her voice to beloved cartoons to portraying complex characters in edgy series like “American Horror Story” and the critically acclaimed “Cobra Kai,” she’s proven her versatility and range. With a strong foundation in television and a growing film presence, Mary Mouser is sure to continue captivating audiences for years to come.