Leon Quartermaine (24 September 1876 – 25 June 1967) was a British actor whose stage career, in Britain and the United States, extended from the early 1900s to the 1950s. He was born in Richmond, London, and educated at the Whitgift School in Croydon, where one of his contemporaries was The Revd Harold Davidson, later unfrocked while Rector of Stiffkey. The pair acted together in a school production of the farce Sent to the Tower. In 1921 Quartermaine appeared with Fay Compton in a West End revival of J. M. Barrie's play Quality Street. In February 1922 Quartermaine and Compton married, and remained so until their divorce in 1942. Quartermaine made numerous appearances on Broadway between 1903 and 1935, including Laertes (Hamlet, 1904), Lieutenant Osborne in the American premiere of R. C.