Inga Ibsdotter Lilleaas (born 9 April 1989) is a Norwegian actress. She gained widespread critical acclaim in 2025 for her role as Agnes Borg Pettersen in Joachim Trier's Sentimental Value. Her performance earned her the National Board of Review Award for Best Supporting Actress, in addition to Academy Award, BAFTA Award, and Golden Globe Award nominations in the same category.
Early life Inga Ibsdotter Lilleaas was raised in Gol Municipality, Norway. Her parents ran a company that rented out costumes and equipment to amateur stage productions. As a high school student, she lived as a foreign exchange student in Brazil, where she learned to speak Portuguese. She studied theatre at Nord University, learning the Jacques Lecoq acting method focusing on physical theatre. She also spent a semester studying at the Lee Strasberg Theatre and Film Institute in New York City.
Career Lilleaas was nominated for the Amanda Award for Best Actress in 2015 for her film debut in Women in Oversized Men's Shirts (Kvinner i for store herreskjorter). In 2019, she performed the role of Hermia in A Midsummer Night's Dream at the Haugesund Theater in Haugesund, Norway.HaugesundTeater.no MidsommerNattsdrom 2019 Cast accessed 02/28/2026 In 2021, she performed the role of Madame de Tourvel in Les Liaisons dangereuses. In 2023, she performed the role of Tamora in Titus Andronicus at the Nordland Theatre in Mo i Rana.Sceneweb.no Inga Ibsdotter Profile accessed 02/28/206 Also in 2023, she starred in the Netflix musical film A Beautiful Life. In 2025, she starred as Agnes Borg in Joachim Trier's Sentimental Value, which premiered at the Cannes Film Festival, for which she won the National Board of Review Award for Best Supporting Actress.
Personal life Lilleaas is married to actor Gunnar Eiriksson, with whom she has one son.deadline.com Inga Ibsdotter Lilleaas Interview accessed 02-02-26
Filmography Year Title Role Notes 2015 Women in Oversized Men's Shirts Sigrid Auge Film debut 2016 The Last King Ylva 2017 Going West Lotte 2020 Betrayed Amalie Laksov 2023 A Beautiful Life Lilly Danish film 2025 Sentimental Value Agnes Borg Pettersen 2026 Small Talk Elisabeth TBA Zero K Artis The Outsider Claudia Andujar
Awards and nominations Year Award Category Work Result 2015 Amanda Award Best Actress Women in Oversized Men's Shirts 2016 Kosmorama Best Female Actress in a Leading Role 2025 Savannah Film Festival Discovery Award Sentimental Value Gotham Independent Film Awards Outstanding Supporting Performance National Board of Review Awards Best Supporting Actress Los Angeles Film Critics Association Best Supporting Performance Washington D.C. Area Film Critics Association Best Supporting Actress Best Ensemble Michigan Movie Critics Guild Best Supporting Actress Chicago Film Critics Association Best Supporting Actress Phoenix Critics Circle Best Actress in a Supporting Role San Francisco Bay Area Film Critics Circle Best Supporting Actress St. Louis Film Critics Association Best Supporting Actress New York Film Critics Online Best Supporting Actress Seattle Film Critics Society Best Actress in a Supporting Role Dallas–Fort Worth Film Critics Association Best Supporting Actress Austin Film Critics Association Best Supporting Actress Online Association of Female Film Critics Best Supporting Female Kansas City Film Critics Circle Best Supporting Actress Georgia Film Critics Association Best Supporting Actress North Texas Film Critics Association Best Supporting Actress New Jersey Film Critics Circle Best Supporting Actress Best Breakthrough Performance Alliance of Women Film Journalists Best Supporting Actress 2026 Minnesota Film Critics Association Best Supporting Actress Puerto Rico Critics Association Best Supporting Actress National Society of Film Critics Best Supporting Actress Palm Springs International Film Festival International Star Award Critics' Choice Awards Best Supporting Actress Columbus Film Critics Association Best Supporting Performance Astra Film Awards Best Supporting Actress – Drama Best Cast Ensemble Greater Western New York Film Critics Association Best Breakthrough Performance Golden Globe Awards Best Supporting Actress – Motion Picture Hawaii Film Critics Society Best Supporting Actress Music City Film Critics Association Best Supporting Actress North Dakota Film Society Best Supporting Actress Houston Film Critics Society Best Supporting Actress Denver Film Critics Society Best Supporting Actress DiscussingFilm's Global Film Critics Awards Best Supporting Actress Best Breakthrough Performance North Carolina Film Critics Association Best Supporting Actress Online Film Critics Society Best Supporting Actress London Film Critics' Circle Supporting Actress of the Year Midnight Critics Circle Best Supporting Actress Best Breakthrough Performance International Cinephile Society Best Supporting Actress Latino Entertainment Journalists Association Best Supporting Actress Santa Barbara International Film Festival Virtuosos Award Online Film & Television Association Best Supporting Actress Best Breakthrough Performance: Female British Academy Film Awards Best Actress in a Supporting Role Dorian Awards Supporting Film Performance of the Year Satellite Awards Best Actress in a Supporting Role Academy Awards Best Supporting Actress
See also List of Nordic Academy Award winners and nominees List of actors nominated for Academy Awards for non-English performances List of actors with Academy Award nominations
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