Milaine Desaulniers is best known as the younger sister of Academy Award-winning actress Brie Larson, but she has built a professional life that is quite different from her sister’s Hollywood career. Public information connects Milaine with education, particularly mathematics teaching and student leadership, while she has also been involved in a small number of film and creative projects. She has never pursued the same level of public attention as Brie, which explains why reliable information about her personal life remains limited.
Milaine is also known publicly as Raya Milaine Desaulniers and Mimsy Desaulniers, which can make researching her background confusing. Different professional, school, and entertainment records use different versions of her name, but they point to the same person. Rather than building a celebrity career around her family connection, Milaine appears to have focused primarily on education and working with students.
Who Is Milaine Desaulniers?
Milaine Desaulniers is the younger sister of actress Brie Larson, whose birth name is Brianne Sidonie Desaulniers. Milaine has sometimes appeared publicly alongside her famous sister, but she has generally maintained a much quieter lifestyle. Her professional history is mainly connected with secondary education, mathematics, and student activities rather than acting or entertainment.
Public records use several versions of her name. Raya Milaine Desaulniers appears in professional and employment information, while Mimsy Desaulniers has been used in school directories and entertainment credits. Understanding these different names is important because searches for Raya, Milaine, or Mimsy can otherwise make it appear that they are different people.
Milaine Desaulniers Quick Facts
| Detail | Information |
|---|---|
| Full name publicly reported | Raya Milaine Desaulniers |
| Common name | Milaine Desaulniers |
| Also known as | Mimsy Desaulniers |
| Reported birth date | January 5, 1993 |
| Age in 2026 | 33, if the reported birth date is correct |
| Reported birthplace | Sacramento, California |
| Profession | Mathematics teacher and ASB director |
| Current documented workplace | Canyon High School |
| Known for | Being Brie Larson’s younger sister and working in education |
| Sister | Brie Larson |
| Notable screen credit | The Arm (2012) |
| Notable public appearance | 91st Academy Awards in 2019 |
Milaine’s reported date of birth is January 5, 1993, which would make her 33 years old in 2026. However, this date mainly appears in public databases and secondary biography information rather than a direct public statement from Milaine herself. For that reason, her exact birth date and age are better treated as widely reported details rather than completely confirmed facts.
Milaine Desaulniers’ Early Life and Family
Milaine grew up with her older sister Brie Larson in a family that originally lived in Sacramento, California. Their parents, Heather and Sylvain Desaulniers, worked as chiropractors. After their parents separated, their mother moved with Brie and her younger sister to the Los Angeles area, where Brie was able to pursue opportunities in acting from an early age.
Brie has spoken publicly about this period of her childhood and described the family as having limited money while living in a small apartment. She has also spoken positively about the effort their mother made to provide a supportive environment for her daughters despite the difficult circumstances. These stories provide useful background about the household in which Milaine grew up, although they mainly come from Brie’s own memories rather than detailed interviews with Milaine.
Education and Career as a Mathematics Teacher
Milaine’s career in education is one of the clearest and most consistent parts of her public background. Under the name Mimsy Desaulniers, she has been listed as a mathematics teacher and ASB director at Canyon High School. Public employment information under the name Raya Milaine Desaulniers also connects her with teaching positions in the William S. Hart Union High School District over several years.
Before her current documented role at Canyon High School, Milaine was associated with Valencia High School, where she also worked in mathematics education and student activities. A local report from 2020 described her involvement with the school’s Associated Student Body during a Valentine’s Day project designed to place positive and personalized messages around the campus. Her comments about the project showed that her responsibilities extended beyond mathematics lessons and included helping students become more involved in school life.
Professional information has also connected Raya Desaulniers with Pepperdine University during 2015 and 2016. However, publicly available information does not provide enough reliable detail to confidently state a particular degree or complete academic history. What can be said more confidently is that her documented professional career has remained closely connected with education, mathematics, and student leadership.
Her story is similar in one respect to other relatives of famous actors who have developed professional careers outside entertainment. For example, NTX Magazine has also covered Yasmine Malek, Rami Malek’s sister and an emergency-room doctor, whose career is largely separate from her brother’s Hollywood work. Milaine has followed her own professional direction in much the same way, with education rather than celebrity becoming the strongest part of her public career.
Milaine Desaulniers’ Film and Creative Work
Although education appears to be Milaine’s main profession, she has also been involved in entertainment and creative projects. Under the name Mimsy Desaulniers, she is credited with playing Genevieve in the 2012 short film The Arm. The project was directed by Jessie Ennis, Brie Larson, and Sarah Ramos and later received recognition at the Sundance Film Festival.
Mimsy Desaulniers is also associated with projects including The Dew Project and Releasing My First Short Film, Warning: Childhood Cringe from 2021. These credits show that Milaine has some experience with film and creative work, but the available information does not suggest that acting became her main profession. Her much longer and better-documented professional history remains connected to teaching and school activities.
Relationship With Brie Larson
Brie Larson and Milaine Desaulniers have occasionally appeared together publicly, although Milaine has generally stayed away from regular celebrity coverage. Brie has mentioned having a younger sister in interviews, while older profiles and entertainment records sometimes identify that sister by the nickname Mimsy. Their relationship has also appeared through shared interests outside formal Hollywood events.
One example involves Nintendo’s Animal Crossing, a game Brie has publicly discussed as being meaningful to her family. Brie and her sister appeared together in promotional material connected with Nintendo Switch and Animal Crossing, offering a rare public glimpse of their relationship. These appearances suggest that the sisters have maintained a connection while following very different professional paths.
Milaine also accompanied Brie to one of Hollywood’s biggest events. On February 24, 2019, the sisters were photographed arriving together at the 91st Academy Awards in Hollywood. Despite attending such a major event, Milaine did not use the appearance to establish a regular red-carpet or entertainment-media presence and continued to maintain a comparatively private public profile.
What Is Milaine Desaulniers Doing in 2026?
As of 2026, the clearest publicly available information about Milaine’s current career continues to come from education rather than entertainment. Under the name Mimsy Desaulniers, she is listed as an ASB director and mathematics teacher at Canyon High School. This role combines classroom teaching with responsibilities related to student activities and leadership.
There does not appear to be a major verified entertainment development involving Milaine in 2026. Her current professional information instead supports the broader pattern visible throughout her adult life: she has maintained a career in education while occasionally participating in creative projects. This distinction is important because describing her primarily as an actress would give an incomplete picture of what she actually does professionally.
Why Information About Milaine Desaulniers Can Be Confusing
One reason information about Milaine is difficult to follow is that several versions of her name appear online. Celebrity biographies commonly call her Milaine Desaulniers, professional information may identify her as Raya Milaine Desaulniers, and school or entertainment records sometimes use Mimsy Desaulniers. Looking at these records together provides a much clearer picture of her identity and professional background.
Another problem is that some biography websites repeat personal details without clearly explaining where the original information came from. Her reported January 5, 1993 birth date is a good example because it appears across several public databases, but stronger direct confirmation is difficult to find. Details about her education, relationships, net worth, and private life should therefore be treated carefully when they cannot be supported by reliable public information.
Milaine Desaulniers’ Private Life
Unlike Brie Larson, Milaine has not built a career that requires her to regularly discuss her private life with the media. There is limited reliable public information about her romantic relationships, marital status, or other personal matters. Rather than filling those gaps with assumptions, it is more accurate to recognize that she has chosen to maintain a relatively private life.
Her low public profile also explains why considerably more information is available about Brie than about Milaine. Most of what can be responsibly documented about Milaine concerns her family background, teaching career, school involvement, occasional creative work, and a few appearances with her sister. Other personal details should not be treated as established facts unless stronger public documentation becomes available.
How This Was Researched
I researched this biography by comparing school information, public employment records, local education reporting, entertainment credits, professional information, editorial photography, and established interviews about Brie Larson’s family background. I also reviewed biography pages about Milaine to identify details that were repeatedly presented as facts even when stronger confirmation was difficult to find.
One of the biggest gaps in existing coverage is that Milaine is often discussed mainly as Brie Larson’s sister, while her own long-running work in education receives much less attention. This article therefore gives more space to her teaching and student-leadership career while clearly identifying personal information that remains uncertain. Where a detail could not be confidently confirmed, it has been described carefully instead of being presented as certain.
Frequently Asked Questions
Who is Milaine Desaulniers?
Milaine Desaulniers is the younger sister of Academy Award-winning actress Brie Larson. She has maintained a relatively private life and has developed a professional career primarily in education, particularly mathematics teaching and student leadership. She also has a small number of entertainment and creative credits under the name Mimsy Desaulniers.
What is Milaine Desaulniers’ real name?
Her fuller name is publicly reported as Raya Milaine Desaulniers. She is commonly known as Milaine Desaulniers, while Mimsy Desaulniers appears in school information and entertainment credits. These different names can make online research confusing, but available records connect them with the same person.
How old is Milaine Desaulniers?
Several public databases report that Milaine was born on January 5, 1993, which would make her 33 years old in 2026. However, the exact birth date does not appear to have been clearly confirmed by Milaine through a direct public statement. It is therefore more accurate to describe her age as being based on a widely reported birth date.
What does Milaine Desaulniers do for a living?
Milaine’s best-documented profession is teaching. Current school information lists Mimsy Desaulniers as an ASB director and mathematics teacher at Canyon High School, while earlier information connects her with mathematics teaching and student activities at Valencia High School. Her professional history therefore points much more strongly toward education than entertainment.
Is Milaine Desaulniers an actress?
Milaine has some film and creative credits, including an appearance as Genevieve in the 2012 short film The Arm. However, there is not enough evidence to describe acting as her main profession. Her longer and more consistently documented career has been in mathematics education and student leadership.
Did Milaine Desaulniers attend the Oscars with Brie Larson?
Yes, Milaine appeared with Brie Larson at the 91st Academy Awards on February 24, 2019. Photographs from the ceremony show the sisters arriving together in Hollywood. Despite the high-profile appearance, Milaine continued to maintain a much more private public life than her sister.
What is Milaine Desaulniers doing now?
As of 2026, Milaine’s clearest current professional role is in education. Under the name Mimsy Desaulniers, she is listed as an ASB director and mathematics teacher at Canyon High School. There is no major verified 2026 entertainment development suggesting that she has moved away from education to pursue a full-time Hollywood career.
Accuracy Note
This biography is based on publicly available information, including school information, professional records, local reporting, entertainment credits, established interviews, and documented public appearances. Some personal details about Milaine Desaulniers remain limited or are reported differently online, so uncertain information has been identified carefully rather than presented as confirmed fact.
Written and researched by Hassan, contributor at ntx magazine.
Written by Hassan, founder and editor of NTX Magazine — an independent news and biography publication. Every article is researched and cross-checked against multiple public sources before publishing; see our Sourcing Standards page for details.
