Bill Bryden 's Royal National Theatre production of The Mysteries, based on the medieval plays of York, Wakefield and Chester, in a version by Tony Harrison. Director Bill Bryden. Producer Nicholas Newton Associate director Sebastian Graham Jones Starring in alphabetical order: Peter Armitage , Stephen Bent , David Bradley , Cathryn Bradshaw , Joe Duttine. William Gaunt. Dave Hill, Sue Johnston , Trevor Laird , William MacBain , John Normington , Robert Oates. Joanna Page , Trevor Ray. lain Robertson. Jack Shepherd. John Tarns, Howard Ward and Don Warrington Music John Tarns. Performed by Graeme Taylor (director of music/vocals), Jonathan Davie (bass guitar/vocals), Stephen Dawson (trumpet/flugel horn). Alan Dunn (keyboard), Michael Gregory (percussion), Kevin Morgan (euphonium/tuba), John Tarns (vocals), Keith Thomson (vocals/woodwind), RogerWilson (violin/vocals) and Linda Thompson (vocals)