Knights Who Say "Ni!"

The head knight, as portrayed by Michael Palin

The Knights Who Say "Ni!", also called the Knights of Ni, are a band of knights encountered by King Arthur and his followers in the 1975 film Monty Python and the Holy Grail and the play Spamalot. They demonstrate their power by shouting "Ni!" (pronounced "nee" /ni/), terrifying the party, whom they refuse to allow passage through their forest unless appeased through the gift of a shrubbery.