John Bernard Lee was an English actor, best known for his role as M in the first eleven Eon-produced James Bond films. Lee's film career spanned the years 1934 to 1979, though he had appeared on stage from the age of six. He was trained at the Royal Academy of Dramatic Art in London. Lee appeared in over one hundred films, as well as on stage and in television dramatisations. He was known for his roles as authority figures, often playing military characters or policemen in films such as The Third Man, The Blue Lamp, The Battle of the River Plate, and Whistle Down the Wind. He died of stomach cancer in 1981, aged 73.

M is a codename held by a fictional character in Ian Fleming's James Bond book and film series; the character is the Chief of the Secret Intelligence Service for the agency known as MI6. Fleming based the character on a number of people he knew who commanded sections of British intelligence. M has appeared in the novels by Fleming and seven continuation authors, as well as appearing in twenty-four films. In the Eon Productions series of films, M has been portrayed by four actors: Bernard Lee, Robert Brown, Judi Dench and Ralph Fiennes, the incumbent; in the two independent productions, M was played by John Huston, David Niven and Edward Fox.