Actor
Louise Brealey
March 27, 1979 · Bozeat, Northamptonshire, England
Louise Brealey (born 27 March 1979) is an English actress, writer and journalist. She played Molly Hooper in Sherlock (2010–), Cass in Back (2017), Scottish professor Jude McDermid in Clique (2017), Gillian Chamberlain in A Discovery of Witches (2018) and Donna Harman in Death in Paradise (2020).
She made her TV debut as Nurse Roxanne Bird in two series of BBC drama Casualty (2002–2004) before playing Judy Smallweed in Bleak House (2005). Brealey plays pathologist Molly Hooper in all four series of Steven Moffat and Mark Gatiss's television drama, Sherlock.
Notable work
8.5Sherlock (2010)
as Molly Hooper
7.8Sherlock: The Abominable Bride (2016)
as Molly Hooper
6Victor Frankenstein (2015)
as Sexy Society Girl
7The Best Exotic Marigold Hotel (2012)
as Hairdresser
7.8A Discovery of Witches (2018)
as Gillian Chamberlain
7.4Death in Paradise (2011)
as Donna Harman
7.5Lockwood & Co. (2023)
as Pamela Joplin
Often works with
Benedict Cumberbatch
3 titles together
Sherlock, Sherlock: The Abominable Bride, Sherlock: Many Happy Returns
Martin Freeman
3 titles together
Sherlock, Sherlock: The Abominable Bride, Sherlock: Many Happy Returns
Rupert Graves
3 titles together
Sherlock, Sherlock: The Abominable Bride, Sherlock: Many Happy Returns
Mark Gatiss
3 titles together
Sherlock, Sherlock: The Abominable Bride, Victor Frankenstein
Andrew Scott
3 titles together
Sherlock, Sherlock: The Abominable Bride, Victor Frankenstein
Jonathan Aris
3 titles together
Sherlock, Sherlock: The Abominable Bride, Sherlock: Many Happy Returns
Full filmography · 29
Madfabulous
as Lady Chetwynd
2026
Daughters of the Late Colonel
as Josephine
2026
Chuck Chuck Baby
as Helen
2024
Brian and Charles
as Hazel
20226.3
Limbo
as Hannah Peyton
2021
Jamie
as Mum
2020
In Wonderland
as Alice
2018
Sherlock: The Abominable Bride
as Molly Hooper
20167.8
Victor Frankenstein
as Sexy Society Girl
20156
Containment
as Sally
20155.9
Birthday
as Natasha
2015
Sherlock: Many Happy Returns
as Molly Hooper
2013