Sienna Miller has built a career across film, television, theatre and fashion, becoming one of the most recognizable British-American actresses of her generation. Born in New York in 1981 and raised largely in London, she first gained attention through modelling before breaking through with films such as Layer Cake and Alfie . Her later work in The Girl , American Sniper and Anatomy of a Scandal strengthened her reputation as a versatile actress. Away from the screen, Miller has also remained a major fashion figure.
Sienna Miller Age – Quick Bio Table Sienna Miller Details Information Full Name Sienna Rose Diana Miller Date of Birth December 28, 1981 Sienna Miller Age 44 years old Net Worth Not officially confirmed; published estimates vary Birthplace New York City, New York, USA Nationality British-American Profession Actress, model and fashion designer Famous For Layer Cake, Alfie, Factory Girl, The Girl, American Sniper, and Anatomy of a Scandal Parents Edwin Miller and Josephine “Jo” Miller Siblings Savannah Miller, her older sister Education Heathfield School Height Around 5 ft 5 in (1.65 m) Weight Not reliably confirmed publicly Hair Color Blonde Eye Color Blue Marital Status Engaged Husband Sienna Miller does not currently have a husband; she is engaged to actor and model Oli Green Partner Oli Green Engagement Confirmed in June 2026 Children Three — two daughters and one son First Child Daughter Marlowe, with former partner Tom Sturridge Children With Oli Green A daughter born in 2023 and a son born in 2026 Years Active 1999–present Instagram @siennarmiller Fashion Career Worked as a model and co-founded Twenty8Twelve with her sister Savannah Miller Notable Theatre Work As You Like It, After Miss Julie, Flare Path, Cabaret, and Cat on a Hot Tin Roof Notable TV Work The Girl, The Loudest Voice, and Anatomy of a Scandal Notable Films Layer Cake, Alfie, Factory Girl, Stardust, American Sniper, High-Rise, The Lost City of Z, and American Woman Awards Recognition Received major nominations for her performance in The Girl and other screen work Known For Acting, fashion influence and her long-running film and television career
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A Timeline of Sienna Miller’s Public Career Year Career Milestone 1999 Began her professional career in modelling and entertainment. 2001 Made an early film appearance in South Kensington . 2004 Gained wider recognition with Layer Cake Alfie 2005 Appeared in Casanova , expanding her film career internationally. 2006 Played Edie Sedgwick in Factory Girl , one of her major early dramatic roles. 2007 Appeared in Stardust and became increasingly prominent in international fashion. 2008 Starred in The Edge of Love and continued developing her dramatic film career. 2009 Returned to Broadway in After Miss Julie 2012 Portrayed Tippi Hedren in The Girl , earning major awards attention. 2014 Appeared in Foxcatcher and American Sniper 2015 Featured in High-Rise , Mississippi Grind and Burnt . 2016 Appeared in The Lost City of Z and Live by Night . 2018 Starred in American Woman 2019 Appeared in The Loudest Voice and 21 Bridges . 2020 Starred in Wander Darkly . 2022 Returned to major television with Netflix’s Anatomy of a Scandal 2024 Appeared in Horizon: An American Saga – Chapter 1 2026 Continued her screen career with new television and film projects, including HBO’s War
Sienna Miller Family Family Member / Detail Information Full Name Sienna Rose Diana Miller Father Edwin “Ed” Miller — an American-born investment banker and dealer in Modern Chinese artMother Josephine “Jo” Miller — a former model who worked with the Lee Strasberg Theatre & Film InstituteSister Savannah Miller — fashion designer and Sienna’s older sisterChildren Three children Daughter Marlowe Ottoline Laine Sturridge , born in 2012, with former partner Tom SturridgePartner Oli Green Daughter with Oli Green Born in December 2023 Son with Oli Green Born in May 2026 Family Background Sienna was born in New York City and raised largely in England after moving to London as a young child Fashion Connection Sienna and her sister Savannah previously worked together on the fashion label Twenty8Twelve
Sienna Miller Awards & Recognition Year Award / Recognition Work / Achievement 2007 BAFTA Rising Star Award — Nominee Recognition for her emerging film career 2007 British Independent Film Award — Nominee Factory Girl 2009 ShoWest Award — Female Star of Tomorrow Career recognition 2013 Golden Globe Award — Nominee The Girl 2013 BAFTA Television Award — Nominee The Girl 2013 Satellite Award — Nominee The Girl 2019 Deauville Talent Award Career achievement and contribution to cinema 2019 Critics’ Choice Television Award — Nominee The Loudest Voice 2020 Screen Actors Guild Award — Nominee Bombshell -related ensemble recognitionCareer Recognition International film and theatre recognition Known for acclaimed performances in The Girl , American Sniper , American Woman and other productions
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