Milaine Desaulniers: The Inspiring Life and Career of Brie Larson’s Younger Sister
Discover her family background, childhood, teaching career, relationship with Brie Larson, and life beyond Hollywood.
Milaine Desaulniers, also known as Mimsy Desaulniers, is an American educator and the younger sister of Academy Award-winning actress Brie Larson. While her sister became internationally recognized through films such as Room and Captain Marvel, Milaine established a career in education. Her professional background includes teaching mathematics and student leadership, along with a small number of credits in entertainment.
Although her famous family connection attracts attention, Milaine has a distinct professional identity. Her story includes moving to Los Angeles as a child, sharing a love of creative activities with her sister, and years of work in California schools.
This article explores Milaine Desaulniers’ early life, parents, relationship with Brie Larson, educational career, public appearances, and the verified details of her personal background.
Quick Bio
| Field | Details |
|---|---|
| Full Name | Milaine Desaulniers |
| Also Known As | Mimsy Desaulniers |
| Birth Year | 1993 |
| Nationality | American |
| Profession | Mathematics Teacher, ASB Director |
| Father | Sylvain Desaulniers |
| Mother | Heather Desaulniers |
| Sister | Brie Larson |
| Known For | Education career and Brie Larson family connection |
| Film Credit | The Arm (2012) |
| Notable Appearance | 91st Academy Awards (2019) |
| Marital Status | Not publicly confirmed |
Who Is Milaine Desaulniers?
Milaine Desaulniers is best known publicly as Brie Larson’s younger sister. However, her professional work also gives her name recognition.
She has worked as a mathematics teacher and Associated Student Body (ASB) director in California. Canyon High School’s staff directory lists her as Mimsy Desaulniers.
Unlike her sister, whose career involves international film productions and major public events, Milaine’s documented professional activities largely center on schools and student development.
Her experience demonstrates that relatives of celebrated entertainers can establish careers in entirely different fields.
Milaine Desaulniers Early Life and Childhood
Growing Up in California
Milaine was born in 1993 and spent her early childhood in California. Her parents, Heather and Sylvain Desaulniers, worked as chiropractors.
The family initially lived in Sacramento, where Brie developed an interest in acting at a young age.
After her parents separated, Milaine moved to the Los Angeles area with her mother and older sister.
Moving to Los Angeles
The relocation was closely connected to Brie’s acting ambitions.
In interviews, Brie Larson has described living with her mother and sister in a small apartment while attending auditions. Financial resources were limited during those early years.
These accounts provide insight into the household Milaine shared, although she has not publicly described those experiences in comparable detail.
Milaine Desaulniers Parents and Family Background
Sylvain Desaulniers: Her Father
Sylvain Desaulniers is Milaine’s father. He worked as a chiropractor and has French-Canadian family roots.
The Desaulniers surname reflects that heritage. Brie Larson has said she grew up with French as her first language.
Heather Desaulniers: Her Mother
Heather Desaulniers is Milaine and Brie’s mother.
After separating from Sylvain, Heather moved to Los Angeles with her daughters and supported Brie’s early acting opportunities.
Brie has repeatedly acknowledged her mother’s dedication during their financially challenging years.
Milaine Desaulniers and Brie Larson’s Relationship
Two Sisters With Different Careers
Brie Larson, born Brianne Sidonie Desaulniers, achieved international recognition through acting.
Her performance in Room earned her the Academy Award for Best Actress in 2016. She subsequently became widely recognized for portraying Carol Danvers in the Marvel Cinematic Universe.
Milaine followed a different professional path, establishing herself in education rather than building a full-time entertainment career.
A Shared Interest in Video Games
The sisters have also maintained connections through childhood interests.
In a 2020 interview, Brie Larson discussed how she and Milaine enjoyed playing Nintendo’s Animal Crossing while growing up.
Their mother encouraged them to finish homework before playing. As adults, the sisters continued sharing their enthusiasm for the game.
This publicly documented interest offers a personal glimpse into their relationship.
Milaine Desaulniers Career in Education
Mathematics Teaching
Milaine’s teaching career is among the best-documented aspects of her adult life.
Under the name Mimsy Desaulniers, she appears in Canyon High School’s official staff directory as a mathematics teacher and ASB director.
Her professional work therefore extends beyond classroom instruction into student activities and leadership.
Supporting Student Development
In 2020, local reporting identified Mimsy as a mathematics teacher and ASB director at Valencia High School.
Students organized a Valentine’s Day initiative involving personalized paper hearts carrying positive messages.
The activity was intended to help members of the school community feel recognized and appreciated.
Responsibilities Beyond the Classroom
An ASB director helps coordinate student leadership activities, school events, and participation opportunities.
Milaine’s documented involvement in these programs highlights a professional role combining academic instruction with school community engagement.
Did Milaine Desaulniers Work in Hollywood?
Although education became her principal documented profession, Milaine has also appeared in an entertainment project.
Under the name Mimsy Desaulniers, she played Genevieve in the 2012 short film The Arm.
Brie Larson, Sarah Ramos, and Jessie Ennis co-directed the film. Its story examines relationships and communication in a world increasingly shaped by technology.
This credit confirms that Milaine has participated in filmmaking, although her public career is primarily associated with teaching.
Milaine Desaulniers at the 2019 Academy Awards
Milaine attended the 91st Academy Awards with Brie Larson on February 24, 2019.
Editorial photographs from the ceremony identify both sisters arriving at the Dolby Theatre in Hollywood.
The appearance remains a notable documented occasion, as Milaine attended a major Hollywood event alongside her famous sibling.
Milaine Desaulniers Personal Life and Privacy
Milaine has a considerably smaller public profile than Brie Larson.
While her teaching responsibilities and selected entertainment appearances are documented, reliable public information about her romantic relationships, marriage, and children remains limited.
Likewise, no sufficiently verified public figure exists for her personal net worth.
Her biography is therefore best understood through established information rather than unconfirmed claims about private circumstances.
Why Milaine Desaulniers Attracts Public Interest
Interest in Milaine frequently begins with Brie Larson’s international popularity.
However, her teaching career, student leadership activities, short-film appearance, and occasional public appearances provide a broader understanding of her life.
Her story illustrates how two sisters raised in the same household can develop different professional identities while retaining shared family experiences.
Conclusion
Milaine Desaulniers is more than a familiar name connected to an Oscar-winning actress. Known professionally as Mimsy Desaulniers, she has established a documented career in mathematics education and student leadership.
From growing up alongside Brie Larson to participating in a short film and attending the Academy Awards, her public story combines family connections with independent professional achievements.
The clearest picture of Milaine is that of an educator whose work deserves recognition alongside her better-known family background.
Frequently Asked Questions About Milaine Desaulniers
1. Who is Milaine Desaulniers?
Milaine Desaulniers is an American mathematics teacher and the younger sister of Oscar-winning actress Brie Larson.
2. How old is Milaine Desaulniers?
Milaine was reportedly born in 1993, making her approximately 33 years old in 2026, depending on her exact birthday.
3. What does Milaine Desaulniers do for a living?
She works in education. Canyon High School identifies Mimsy Desaulniers as a mathematics teacher and ASB director.
4. Has Milaine Desaulniers appeared in a movie?
Yes. She played Genevieve in the 2012 short film The Arm, which Brie Larson helped direct.
5. Is Milaine Desaulniers married?
Her marital status has not been reliably confirmed in widely available public reporting.
