Siân Brooke

Siân Elizabeth Phillips (born 1980 ), known professionally as Siân Brooke, is a British actress. Her television work includes Cape Wrath, Sherlock (2017), Doctor Foster (2017), Good Omens (2019), Guilt (2019), Trying (2020–), and House of the Dragon (2022).

She played Constable Grace Ellis in Blue Lights (2023–present) earning her a nomination for BAFTA TV Award - Leading Actress in 2026.

Early life and education Siân Elizabeth Phillips was born in Lichfield, Staffordshire, England, in 1980 and is the youngest of three siblings. She took on a stage name to avoid confusion with Welsh actress Siân Phillips, choosing Brooke after an English Civil War general Lord Brooke who was killed at Lichfield. She is the daughter of a police officer and a teacher. Brooke's early education was at The Friary School in Lichfield. She initially joined the Lichfield Youth Theatre at the age of 11 before becoming a member of the National Youth Theatre,

Career Her acting debut was as Krista in television series Dinotopia in 2002.

Brooke's theatre work includes Harvest, Dying City, Dido Queen of Carthage, In The Club, The Birthday Party, “I’m Not Running” and Absolutely Perhaps. She has also appeared in productions of Poor Beck,

In 2017, Brooke starred in the fourth series of the television crime drama Sherlock as Sherlock Holmes' secret sister, Eurus. She initially auditioned for several characters in the show before the showrunners told Brooke that all the characters were one, Eurus, who would be a master of disguise. Michael Hogan writing for The Daily Telegraph in his review of the third episode of the series commented that the role was "a star-making turn from Siân Brooke". Later in the year, she appeared with Sheridan Smith and Gemma Whelan in the BBC miniseries The Moorside, based on the kidnapping of Shannon Matthews. She starred as Karen in the first four series of Apple TV series Trying, which has been renewed for a fifth series.

Her lead role performance in the 2023–24 BBC series Blue Lights as Grace Ellis, a mother of a teenager who made the decision in her 40s to leave her job as a social worker to join the Police Service of Northern Ireland, has been critically acclaimed.

Personal life

Brooke is married to Bill Buckhurst, a film, television and theatre director, with whom she has two children. She is an ambassador for the climate change adaptation charity The Glacier Trust.

Filmography Television

Film

Stage

Awards and nominations Year Award Category Work Result Ref. 2020National Film Awards UKBest Actress in a TV SeriesGood Omens 2026 BAFTA TV Awards BAFTA TV Award - Leading ActressBlue Lights