John is a novelist, biographer, and writer for film, radio, television and stage. Together with David Sherwin he created If...., one of the key films in British cinema history. He has written biographies of James Dean and Frank Sinatra. His television credits include Murder of a Moderate Man, Game, Set and Match, and Doomwatch. Together with Robert Campbell he wrote the musical Dean about the life of American actor James Dean, which was performed in the West End of London and in Japan for many years.