Jonny Greenwood (born November 5, 1971) is a British musician best known as a member of the alternative rock band Radiohead. He portrayed Kirley Duke, the lead guitarist of The Weird Sisters, in the film adaption of Harry Potter and the Goblet of Fire.
Jonny plays several instruments in addition to guitar, including keyboard, glockenspiel, and Ondes Martenot (an early electronic instrument similar to a theremin).