Kelly starred in Jean-Paul Sartre's play "Kean" alongside Antony Sher at the Theatre Royal, Bath, and in the West End in May 2007. In December 2007, a car struck and injured Kelly in the West End. He was to have performed in the "Doctor Who" episode ("Midnight") filmed in that month, but the role was taken by David Troughton instead. Kelly though did act in the "Doctor Who" audio dramas "The Holy Terror" and "Return to the Web Planet" by Big Finish Productions.