John Marwood Cleese is an English actor, comedian, writer and film producer. He achieved success at the Edinburgh Festival Fringe, and as a scriptwriter on The Frost Report. In the late 1960s he became a member of Monty Python, the comedy troupe responsible for the sketch show Monty Python's Flying Circus and the four Monty Python films: And Now for Something Completely Different, Holy Grail, Life of Brian and The Meaning of Life...(Wikipedia)

Richard Henry Sellers, OBE (8 September 1925 - 24 July 1980), known as Peter Sellers, was a British comedian and actor best known as Chief Inspector Clouseau in The Pink Panther film series, for playing three different characters in Dr. Strangelove, as Clare Quilty in Lolita, and as the man-child and TV-addicted Chance the gardener in his penultimate film, Being There. Leading actress Bette Davis once remarked of him, "He isn't an actor -- he's a chameleon." ... (Wikipedia)

Credits include: Oliver!, The Bed Sitting Room, Song of Norway, The Unknown Peter Sellers and Down Among the Z Men

Credits include: The Three Musketeers, Yellowbeard, The Bed Sitting Room and The Running Jumping & Standing Still Film

Credits include: The Do-It-Yourself Cartoon Kit, Down Among the Z Men, The Goon Show and Forces' Sweetheart

Credits include: The Goon Show