Rosie Sheehy

Rosie Sheehy is a Welsh stage and screen actor, known for her work with the Royal Shakespeare Company, the Royal National Theatre, The Old Vic and for her critically acclaimed performances in London theatre. A graduate of the Royal Academy of Dramatic Art (RADA), she has been recognised for her emotional range in both classical and contemporary roles. Sheehy received a Laurence Olivier Award nomination for Best Actress for her performance as the Young Woman in Machinal at the Old Vic in 2024. She went on to be nominated the following year for her groundbreaking performance as her in Guess How Much I Love You?.

Early life and education Sheehy was born and raised in Port Talbot, Wales, a community noted for its vibrant theatrical lineage and for nurturing several prominent performers. She has acknowledged the town's artistic identity as formative in her development as an actor. She later trained at the Royal Academy of Dramatic Art (RADA) in London. She went on to appear in Uncle Vanya at Theatr Clwyd and Sheffield Theatre as Sonya, a performance that won the Best Female Performance in the English Language Award at the Wales Theatre Awards.

Other notable stage performances include:

The Wolves (Theatre Royal Stratford East) — 13, directed by Ellen McDougall Richard III (Royal Shakespeare Company) — Lady Anne, directed by Greg Doran, nominated for the Ian Charleson Awards 2023 Machinal (Old Vic & Theatre Royal Bath) — Young Woman, directed by Richard Jones, nominated for Best Actress at the 2025 Olivier Awards

The Reviews Hub wrote: “Rosie Sheehy gives a towering central performance that will be talked about for decades.”

In The Guardian, Arifa Akbar wrote that she "cements her reputation as an astounding stage talent."

Reviewing the transfer to London, The Standard called her "gobsmacking," adding that "once in a while a … lead performance comes along which makes theatre history."

For The Brightening Air, critics again singled her out. Time Out described the play as "a bittersweet drama … Sheehy’s tough but intensely vulnerable Billie … it will be decades before the world is ready for her."

The Financial Times praised her as "outstanding as Billie, whose frankness makes her both vulnerable and insightful, and who is … the anchor of the play." The Standard noted: “Rosie Sheehy … adds to her unbroken run of transfixingly vivid roles … She gives the character … a twitchily unpredictable conviction.”

Awards and nominations YearAwardCategoryWorkResult 2025 Laurence Olivier Awards Best Actress Machinal 2026 Laurence Olivier Awards Best Actress Guess How Much I Love You?