Sophie Louise Cookson is an English actress best known for portraying secret agent Roxanne “Roxy” Morton / Lancelot in the 2015 spy film Kingsman: The Secret Service and its 2017 sequel The Golden Circle, and for playing the title role of Christine Keeler in the BBC One drama series, The Trial of Christine Keeler.
While still attending Oxford Drama School in her senior year, she was cast as Grace Mohune in the Sky 1 miniseries Moonfleet, based on the J. Meade Falkner novel of the same name. In early 2014, she appeared in the film adaption of the Rosamunde Pilcher novel Unknown Heart produced by German television network ZDF, portraying Millie Lancaster. The same year, she also landed her first big screen role, replacing Emma Watson for the part of secret agent Roxanne “Roxy” Morton / Lancelot in the spy film Kingsman: The Secret Service, based on the comic book The Secret Service by Mark Millar and Dave Gibbons.
Beginning in June 2017, she appeared in the Netflix series Gypsy as troubled singer Sidney Pierce. However, the series was cancelled in August after just one season due to negative reviews and low ratings, even though the second season had already been in development.
Sophie is in a relationship with Stephen Campbell Moore.