John Emrys Whittaker Jones (22 September 1915 – 10 July 1972) was an English actor of Welsh heritage. After making his stage debut in Donald Wolfit's company in 1937, his film debut came in Powell and Pressburger's One of Our Aircraft Is Missing in 1942, and he began to develop a career in the British cinema of the 1940s. Due to his boyish looks he would often be cast as young innocents in films such as The Wicked Lady (1945), The Rake's Progress (1945), Nicholas Nickleby (1947), and Powell and Pressburger's The Small Back Room (1949).