Who is that military fellow who stops the show and two of the movies for being too silly?
He is Graham Chapman’s Colonel. No other name has been given, though John Cleese has suggested Colonel Muriel Volestrangler. He first appeared in a few early episodes of the Flying Circus and didn’t do much, but in the episode “Full Frontal Nudity,” which also featured the Parrot sketch, he got angry at the silly sketches being offered him and took military control of the show, stopping and starting sketches if they got too “silly.” It was a very funny bit, and good enough to be used in several other episodes as well as in the films “And Now for Something Completely Different” and “Live at the Hollywood Bowl.” The Colonel has been cited by one site under the name of “The Sergeant-Major,” but that is another character, namely that in the “Fresh Fruit Self Defense” bit. Cleese did play the Colonel in a few other episodes. A character closely resembling and acting like the Colonel, and played by Graham, but without the moustache or clothing style, appears in the Meaning of Life film, and
