Milaine Desaulniers

Milaine Desaulniers is best known publicly as the younger sister of actress Brie Larson, but her own public record tells a more grounded story. Unlike her Oscar-winning sister, Milaine has largely stayed outside Hollywood and built a career in education.

Current school records identify Mimsy Desaulniers as an ASB director and mathematics teacher at Canyon High School in California. Public employment records also connect the name Raya Milaine Desaulniers with teaching work in the William S. Hart Union High School District.

She has also had a small connection to film. Under the name Mimsy Desaulniers, she is credited as Genevieve in the 2012 short film The Arm, which Brie Larson co-directed with Jessie Ennis and Sarah Ramos.

The available evidence suggests that Milaine’s main professional identity is education, while her connection to entertainment comes primarily through her family and a handful of creative projects.

Who Is Milaine Desaulniers?

Milaine Desaulniers is the younger sister of Brie Larson, whose birth name is Brianne Sidonie Desaulniers. Brie Larson’s family information identifies Milaine as her sibling and lists their parents as Heather Desaulniers and Sylvain Desaulniers.

Milaine has attracted attention largely because of that family connection. Her sister became internationally known through films including Room and Captain Marvel, while Milaine has maintained a comparatively private life.

That contrast is important. Milaine is not best described as a full-time actress or celebrity. The strongest current professional evidence points to a career in secondary education.

Her public names can also make searches confusing. Sources variously identify her as:

Name	Where it appears
Milaine Desaulniers	Public references and entertainment coverage
Raya Milaine Desaulniers	Public employment records
Mimsy Desaulniers	School records and entertainment credits

The current Canyon High School staff directory lists Mimsy Desaulniers as both an ASB director and math teacher.

Milaine Desaulniers and Brie Larson

The sisters grew up together before Brie Larson became a major Hollywood star. Brie was born in Sacramento, California, to Heather and Sylvain Desaulniers. Biographical sources describe the family as having French Canadian connections through their father, while French was an important part of Brie’s early childhood.

Their childhood connection remains visible in stories Brie has shared publicly.

One particularly revealing example involves Animal Crossing. In a 2020 interview, Larson explained that the original Nintendo GameCube version had been important to her and her sister Milaine since childhood. Their mother reportedly used turns with the game as an incentive for the girls to finish their homework. As adults, the sisters continued playing together and used the newer game to stay connected.

That detail gives a clearer picture of their relationship than many celebrity biography claims. It is a specific memory directly connected to something Larson herself discussed publicly, rather than speculation about their private lives.

What Does Milaine Desaulniers Do for a Living?

Milaine Desaulniers’ best documented profession is mathematics education.

Canyon High School’s current staff directory identifies Mimsy Desaulniers as an ASB Director and Math Teacher. She is also listed within the school’s mathematics department.

Public employment records provide additional evidence of a long-running teaching career. Records for Raya Milaine Desaulniers connect her with William S. Hart Union High School District as a teacher across multiple years, including 2016 through 2024 in the available records.

This makes the teaching career considerably better documented than some of the claims repeated by celebrity biography websites.

Her work extends beyond mathematics

Her role has not been limited to classroom teaching.

As an ASB director, Desaulniers has also been involved in student activities and school community projects. In February 2020, The Santa Clarita Valley Signal reported on a Valentine’s Day project at Valencia High School in which ASB students placed personalized hearts around campus containing positive messages for students and staff. The article identified Mimsy Desaulniers as the school’s math teacher and ASB director.

The project illustrates an important part of her professional role. Her work has involved not only teaching mathematics but also helping students organize activities and create a stronger school community.

From Valencia High School to Canyon High School

Public records show a consistent connection between Desaulniers and the William S. Hart Union High School District. Payroll databases list Raya Milaine Desaulniers as a teacher in multiple years, while school materials from Valencia High School identify Mimsy Desaulniers as its ASB director.

The current Canyon High School directory places her in a similar combination of responsibilities.

This continuity matters because it helps distinguish documented employment from the less reliable claims found on some celebrity biography websites. Rather than assuming that a few entertainment credits represent her main occupation, the available institutional and employment records point toward education as her established career.

Did Milaine Desaulniers Act in Movies?

Yes, but her acting work appears limited.

Milaine is credited professionally as Mimsy Desaulniers in the short film The Arm, released in 2012. IMDb lists her as Genevieve, while the film’s credits identify Jessie Ennis, Brie Larson, and Sarah Ramos as directors and writers.

The film is a short comedy drama about a young man who believes he has started a relationship through text messaging. Its production was connected to a group of young actors and filmmakers, rather than being a major Hollywood feature.

Film editor Max Goldblatt’s portfolio also lists Mimsy Desaulniers among the starring cast and notes that The Arm received the Sundance Film Festival’s Special Jury Prize for Comedic Storytelling in 2012.

IMDb also lists Mimsy Desaulniers in connection with The Dew Project and Releasing My First Short Film, Warning: Childhood Cringe, both from 2021.

There is therefore legitimate evidence of creative work, but there is not comparable evidence that acting became her primary profession.

Why Does the Name Mimsy Desaulniers Appear?

The name “Mimsy Desaulniers” can lead to confusion because it appears in both education and entertainment records.

For example, the Canyon High School directory uses Mimsy Desaulniers for her teaching and ASB responsibilities.

The same name appears in the cast list for The Arm.

Meanwhile, public payroll databases use the longer name Raya Milaine Desaulniers.

These records provide a reasonable basis for connecting the names, but it is still better to distinguish between what a source explicitly establishes and what is inferred from matching records. This is especially important because much of the online material about Milaine comes from secondary biography sites that repeat one another.

Milaine Desaulniers’ Public Appearance With Brie Larson

One of Milaine’s most visible public appearances came at the 91st Academy Awards on February 24, 2019.

Editorial photography from the event identifies Brie Larson and Milaine Desaulniers arriving together at the Dolby Theatre in Hollywood.

The appearance received attention because Milaine generally has a much lower public profile than her sister. It is also a useful example of the difference between being connected to a celebrity and actively pursuing celebrity status.

Milaine’s public appearances have generally been occasional rather than part of a sustained entertainment career.

Milaine Desaulniers and Animal Crossing

One of the most personal public details about the sisters comes from their shared interest in Nintendo’s Animal Crossing series.

Brie Larson has spoken about playing the original game with Milaine when they were younger. Their mother reportedly created a homework rule around turns on the game, making gaming time something the sisters earned after completing their schoolwork.

Years later, Larson said that playing Animal Crossing: New Horizons allowed her and Milaine to reconnect despite being adults. They could visit each other’s virtual islands while communicating remotely.

This is one of the clearest publicly documented examples of their relationship. It also shows that Milaine’s connection to Brie is not limited to red carpet photographs or entertainment coverage.

What Is Known About Milaine Desaulniers’ Age?

Several online sources give January 5, 1993, as Milaine Desaulniers’ birth date, which would make her 33 in 2026. A family history database contains a record for Raya Milaine Desaulniers with that birth date and Sacramento, California, as the birthplace.

However, this detail is not as strongly established as her current teaching role. Much of the exact birth-date information repeated online traces back to secondary databases rather than a direct statement from Milaine.

For that reason, the safest description is that public records commonly report her birth in 1993, rather than presenting every biographical detail about her birth as independently confirmed.

Milaine Desaulniers’ Parents and Family

Milaine’s parents are Heather Desaulniers and Sylvain Desaulniers. They are also the parents of Brie Larson. Sources covering Larson’s early life describe Heather and Sylvain as chiropractors who operated a practice together.

Brie’s family history has received considerably more attention than Milaine’s because of Brie’s acting career. As a result, many details about Milaine’s childhood appear indirectly through interviews and profiles about her older sister.

That distinction matters. Information about Brie’s childhood can establish the circumstances of the family, but it should not automatically be treated as a first-person account of Milaine’s own experiences.

What Is Known About Milaine Desaulniers Today?

The clearest current information places Milaine, under the name Mimsy Desaulniers, in education. Canyon High School currently lists her as a math teacher and ASB director.

Beyond that professional information, relatively little about her present-day personal life is reliably documented.

That means claims about her relationships, home, finances, private social media activity, or other personal matters should be treated cautiously unless they come from a dependable source or from Milaine herself.

Her public record is actually more interesting when viewed on its own terms. She has an established career in education, a limited history of creative work, and a well-documented connection to Brie Larson. None of those facts requires turning her private life into celebrity speculation.

Frequently Asked Questions About Milaine Desaulniers

Who is Milaine Desaulniers?

Milaine Desaulniers is the younger sister of actress Brie Larson. Public school records identify her as a mathematics teacher and ASB director under the name Mimsy Desaulniers.

What does Milaine Desaulniers do?

She works in education. Canyon High School currently lists Mimsy Desaulniers as a math teacher and ASB director, while public employment records connect Raya Milaine Desaulniers with William S. Hart Union High School District.

Is Milaine Desaulniers an actress?

She has acted in at least one clearly documented film. IMDb credits Mimsy Desaulniers as Genevieve in the 2012 short film The Arm. IMDb also lists later creative projects under the same name.

Is Milaine Desaulniers Brie Larson’s sister?

Yes. Brie Larson’s biographical records identify Raya Milaine Desaulniers as her sister.

Did Milaine Desaulniers attend the Oscars with Brie Larson?

Yes. Editorial records identify Brie Larson and Milaine Desaulniers arriving together at the 91st Academy Awards in Los Angeles on February 24, 2019.

What is Milaine Desaulniers’ relationship with Brie Larson like?

Publicly documented accounts suggest they have remained close. Brie Larson has specifically discussed playing Animal Crossing with Milaine during childhood and reconnecting through the game as adults.

Is Milaine Desaulniers married?

There is not enough reliable public evidence to confirm her current marital or relationship status. Claims about her private relationships should not be treated as established facts without stronger sourcing.

The Bigger Picture

Milaine Desaulniers is interesting precisely because her public story is much quieter than her sister’s.

Her connection to Brie Larson explains why people search for her, but it does not define the entirety of the available evidence. The strongest records show a mathematics teacher and student activities director with years of involvement in education. She also has a small collection of creative credits, including a role in The Arm, and has appeared publicly alongside Brie on notable occasions.

The most useful way to understand Milaine is therefore not as a hidden Hollywood celebrity, but as a private person whose life intersects with entertainment through family and occasional creative work. Her documented career in education gives her biography a clearer shape than the speculative details often repeated online.