Jessica Kelly Siobhán Reilly is an English actress who was born on 18 July 1977 in Chessington, UK. Her performance in After Miss Julie at the Donmar Warehouse made her a star and earned her a nomination for a Laurence Olivier Award for Best Actress in 2003. She worked with Terry Johnson in four productions, namely, Elton John's Glasses (1997), The London Cuckolds (1998), The Graduate (2000), and Piano/Forte (2006). Reilly wowed critics with her work in plays like ‘Elton John's Glasses’, ‘Blasted’ and ‘Sexual Perversity in Chicago’. The Times called her ‘theatrical Viagra’. Reilly also appeared in Sherlock Holmes, Triage, and Me and Orson Welles. In 2005 she was nominated for the César Awards for Best Actress for her work in the film ‘Russian Doll’ while winning the Empire Award for Best Newcomer and London Film Critics' Circle for British Newcomer of the Year for her performance in ‘Mrs Henderson Presents’. She has also starred opposite Keira Knightley in the 2005 film Pride & Prejudice. In 2018, Kelly was cast in the leading female role of the American drama television series, ‘Yellowstone’, by Paramount Network.

In the past, Kelly Reilly has worked with celebrity makeup artists which include: Lisa Eldridge.