Lennox played Margot in the original
West End cast of
Legally Blonde in 2009, for which she also understudied
Sheridan Smith in the leading role of
Elle Woods. In 2012 she played Doralee Rhodes in the UK touring production of
9 to 5. She was nominated for both the
Laurence Olivier Award for Best Actress in a Supporting Role in a Musical at the
2016 Laurence Olivier Awards and the
WhatsOnStage Award for Best Supporting Actress in a Musical at the
2016 WhatsOnStage Awards for her performance. She played Elly in the
David Bowie and
Enda Walsh musical
Lazarus when it played a limited season at the
Kings Cross Theatre from October 2016 to January 2017. She was nominated for the WhatsOnStage Award for Best Supporting Actress in a Musical at the
2017 WhatsOnStage Awards. In 2018 she played the role of Pocahontas in the new play
Ramona Tells Jim also starring Joe Bannister and
Ruby Bentall at
Bush Theatre in London. In January 2019 she joined the cast of
Holby City, playing Chloe Godard, a CT surgeon and the daughter of the YAU consultant
Ange Godard (
Dawn Steele). On 21 March 2022, she took over the role of
Sally Bowles in
Cabaret at the
Playhouse Theatre, starring alongside Fra Fee. In June 2023, she played the role of Sarah in the new play
Spy for Spy also starring
Olive Gray at
Riverside Studios. ==Personal life==