Brady was born in
Bracknell, Berkshire and moved around the country as a child. She went to boarding school at
St Mary's School Ascot from the ages of 11 to 18. Interested in acting from a young age, she did some modeling as a teenager to save money to move to
London.[10]
Career
Brady made her television debut in the second series of the
ITV series Mr Selfridge and her film debut as Joan Collins in Legend.[11] She then signed with Premier Model Management, walking her first runway and landing a brand campaign with
Miu Miu.[10][12] She played Mary Bennet in the 2016
comedy horror film Pride and Prejudice and Zombies. In 2015, she was set to star in a TV adaptation of the novel The Clan of the Cave Bear; however,
Lifetime cancelled the series before it ever went into production.[13][14]
In June 2021, it was announced Brady would appear in the
Apple TV+ miniseries Surface, which premiered 29 July 2022. Brady made her
Off West End debut in February 2022 appearing in an English-language translation of the play The Forest by
Florian Zeller at the
Hampstead Theatre, directed by
Jonathan Kent.[16]
In April 2022, Brady was cast in the
horror-thriller film Double Blind alongside
Pollyanna McIntosh.[17] In August 2022 it was announced that Brady would star as the lead in the
Filip Jan Rymza-directed feature film Object Permanence, playing "Brooke Brooks, a former
supermodel who becomes a highly successful lifestyle mogul and the first person to
IPO (Initial Public Offering) herself." Filming is set to begin September 2022 in Poland, Germany and Thailand.[18]
Personal life
Brady resides in
Hampstead in North London with her older sister Caroline.[10] She has a dog named Luna.[19] Though she prefers to keep her dating life private, it became public knowledge that Millie and the
One Direction singer
Harry Styles dated briefly in 2013; they broke up in the same year.[20][21]