Mary Mouser Wiki, Height, Age, Boyfriend, Family, Biography & More

Mary Mouser is an American actress who is best known for her work in the American television series Life Is Wild (2007), Body of Proof (2011), and Cobra Kai (2018).


Mary Matilyn Mouser [1] was born on Thursday, May 9, 1996 (age 25 years; as of 2021), in Pine Bluff, Arkansas. Her zodiac sign is Taurus.

Mary Mouser as a child

She began acting when she was just five years old as a hobby, which later became her career.

Physical Appearance

Height [2]: 5′ 3″

Eye Color: Blue

Hair Color: Brown

Family, Ethnicity & Relationships

Parents & Siblings

She was born to Tina and Scott Mouser. Her parents are no longer together. She has two siblings; a brother named Aaron Parker Mouser and Laura Ashley Mouser, and both are actors.

Mary Mouser with her mother and siblings


She is in a relationship with the American actor and singer Brett Pierce. In 2015, the two met through a mutual friend at a party and have been together ever since.

Mary Mouser with her boyfriend, Brett Pierce



When she was six years old, she began her career as a photo-double for Abigail Breslin’s character in ‘Signs’ (2002).

In 2005, she gave her voice to a character in the English version of the Japanese film ‘Pom Poko.’

Pom Poko (2005)

She mostly did voice roles in animated films such as Tarzan II (2005), Holly Hobbie and Friends: Christmas Wishes (2006), Dragon Hunters (2008), Delgo (2008), Bride Wars (2009), and The Hole (2009). In 2006, she made her acting debut in a film with ‘Mr. Fix It’ as ‘Christine Pastore.’

She played her first lead role as ‘Ruth’ in the American-Italian-Mexican independent film ‘Medeas’ (2013).

Mary Mouser in Medeas (2013)

She went on to act in the American films LA Blues (2007), Ball Don’t Lie (2008), Field of Lost Shoes (2014), and Alexander and the Terrible, Horrible, No Good, and Very Bad Day (2014).


In 2004, she made her television debut with the series ‘Without a Trace’ as ‘Amy Rose’ in the episode: “Nickel and Dimed: Part 2.”

Mary Mouser in Without a Trace (2004)

She then appeared in the small roles in the American series Scrubs (2005), Inconceivable (2005), CSI: Crime Scene Investigation (2005), and The King of Queens (2005). She appeared in the recurring role of ‘Kelly Gibbs’ in the American series ‘NCIS’ (2005-2012), played the lead voice role of ‘Eloise’ in ‘Eloise: The Animated Series’ (2006), and appeared in her first child-lead role of ‘Sarah Cricket Cummings’ in the television film ‘A Stranger’s Heart’ (2007).

Mary Mouser in NCIS (2005-2012)

Eloise: The Animated Series (2006)

Mary Mouser in A Stranger’s Heart (2007)

She also appeared in main roles in the TV series Life Is Wild (2007) and Body of Proof (2011). She then appeared in many TV series in minor and recurring roles before she appeared in the lead role of ‘Samantha LaRusso’ in the series ‘Cobra Kai’ (2018-21).

Mary Mouser in Cobra Kai (2018-21)


Mary Mouser’s autograph

Favorite Things

  • TV Series: Vampire Diaries (2009), Doctor Who (2005)
  • Film(s): Twilight series, Star Wars series, Harry Potter series
  • Actress: Kristen Stewart
  • Actor: Dwayne Johnson
  • Singer: Kelly Clarkson
  • Theme Park: Disneyland in Anaheim, California
  • Comedian: Andy Dick
  • Color: Blue
  • Film Director: Tim Burton


  • She is interested in music and likes to sing and play guitar. She also likes to read and write.
  • In October 2006, for her voice role as ‘Eloise’ in Starz Kids & Family’s ‘Eloise: The Animated Series,’ she was honored with the Outstanding Performance Award at the KIDS FIRST! Film and Video Festival at the Los Angeles International Children’s Film Festival.
  • Mary was diagnosed with type 1 diabetes in 2009. [3] Talking about it in an interview, she said,

    When I was first diagnosed with type 1 diabetes, I felt very isolated and very sad. Being separated from my family and all these people who were trying to be there for me but you just don’t understand that there’s this wall in your life, you don’t get this massive change that just happened in your life.”

  • After she was found to have type 1 diabetes, she started advocating for the cause of type 1 diabetes. She also supports and works with the world’s largest nonprofit funder of type 1 diabetes research called JDRF (Juvenile Diabetes Research Foundation). She represents JDRF at their events and their walks for a cure for funding with the charity.
  • In 2010, she appeared in a voice role in ‘The Lord of the Rings: Aragorn’s Quest’ video game as ‘Eleanor.’
  • She was born on the same day as the American actor Noah Centineo, who is known for his work in the American films The Perfect Date (2019) and To All the Boys: P.S. I Still Love You (2020), and television film The Fosters (2015-18).

    Noah Centineo

  • She is best friends with American actor Tanner Buchanan, who has worked with her in Cobra Kai.

    Mary Mouser with Tanner Buchanan

  • For her role in the series Cobra Kai (2018), she learned Muay Thai. Taking about it in an interview, she said,

    I got myself into the Muay Thai world to start training myself before I ever went into stunt training. Basically, I learned how to not break my fingers in a punch. I became so completely obsessed with it I was going five days a week for fun because I was enjoying it so much. And then with the stunt work, the goal is to not touch your co-worker but to look like you’re punching them. So, I would like to say that I could definitely defend myself in a situation where I would need to, but I don’t know if I am quite at that level in this particular skill set.”

  • She is an avid animal lover. She owns two dogs named Lady Charlotte and Marie Antoinette. She once owned two cats named Sarah and Felix.

    Mary Mouser with her pets


Leave a Comment