John Marwood Cleese is an English actor, comedian, screenwriter, producer, and presenter. Emerging from the Cambridge Footlights in the 1960s, he first achieved success at the Edinburgh Festival Fringe and as a scriptwriter and performer on The Frost Report. In the late 1960s, he cofounded Monty Python, the comedy troupe responsible for the sketch show Monty Python's Flying Circus. Along with his Python costars Terry Gilliam, Eric Idle, Terry Jones, Michael Palin, and Graham Chapman, Cleese starred in Monty Python films, which include Monty Python and the Holy Grail (1975), Life of Brian (1979), and The Meaning of Life (1983).

The Frost Report is a satirical television show hosted by David Frost. It introduced John Cleese, Ronnie Barker, and Ronnie Corbett to television, and launched the careers of other writers and performers. It premiered on BBC1 on 10 March 1966 and ended on 12 December 1967, with a total of 26 regular episodes over the course of 2 series and 2 specials as well.