Cecil Yekuthial Linder (March 10, 1921 – April 10, 1992) was a Polish-born Canadian film and television actor. In the 1950s and 1960s, he worked extensively in the United Kingdom, often playing Canadian and American characters in various films and television programmes. In television, he is best remembered for playing Dr. Matthew Roney in the BBC serial Quatermass and the Pit (1958–59). In film, he is best remembered for his role as James Bond's friend, CIA agent Felix Leiter, in Goldfinger (1964). Another well-known film in which he appeared was Lolita (1962), as Doctor Keegee.