Felicity Rose Hadley Jones is an English actress and producer. Jones started her professional acting career as a child, appearing at age 12 in The Treasure Seekers (1996). She went on to play Ethel Hallow for one series in the television show The Worst Witch and its sequel Weirdsister College. After Kings Norton Girls School, Jones attended King Edward VI Handsworth School, to complete A Levels and went on to take a gap year (during which she appeared in the BBC series Servants (2003)). She took time off from acting to attend school during her formative years, and has worked steadily since she graduated with a 2:1 from Wadham College, Oxford in 2006, where she read English. While studying English, she appeared in student plays, including Attis in which she played the title role, and, in 2005, Shakespeare's "Comedy of Errors" for the OUDS summer tour to Japan, starring alongside Harry Lloyd.

On radio, she is known for playing the long-running role of Emma Grundy in The Archers. In 2008, she appeared in the Donmar Warehouse production of The Chalk Garden. Since 2006, Jones has appeared in numerous films, including Northanger Abbey (2007), Brideshead Revisited (2008), Chéri (2009), and The Tempest (2010). She stars in Star Wars spin-off Rogue One (2016) as Jyn Erso. Her performance in the 2011 film Like Crazy (2011) was met with critical acclaim garnering her numerous awards, including a special jury prize at the 2011 Sundance Film Festival. In 2014, her performance as Jane Hawking in The Theory of Everything (2014) was also met with critical acclaim, garnering her nominations for the Golden Globe, SAG, BAFTA, and Academy Award for Best Actress.

In 2019, Jones founded her own production company, Piecrust Productions with her brother, Alex Jones.