Frederick Samson Robert Morice Fox (born 5 April 1989) is an English actor. His screen career highlights include roles as singer Marilyn in the BBC's Boy George biopic Worried About the Boy (2010), King Louis XIII in The Three Musketeers (2011), Edwin Drood in the BBC's The Mystery of Edwin Drood (2012), and Freddie Baxter in the two gay-themed television series Cucumber (2015) and Banana (2015).
His many notable theatre credits include starring as Oscar Wilde's young lover Lord Alfred "Bosie" Douglas in The Judas Kiss (2012–2013), opposite Rupert Everett, at London's Hampstead Theatre plus a UK tour and West End transfer.
In 2016 he won third prize at the Ian Charleson Awards, for his 2015 performance as Romeo in Romeo and Juliet at the Sheffield Crucible. His proficiency with the role led him to be called into service again as Romeo, this time opposite Lily James in Kenneth Branagh's 2016 production at the Garrick Theatre, when the existing Romeo and his understudy were both injured. Fox took over the role on 26 July and performed it till the end of the play's run on 13 August 2016.
He is also known as Frederick Samson Robert Morice Fox and Frederick Fox.