John Ayldon performed as a bass-baritone with The D`Oyly Carte Opera Company between 1967 and 1982. His featured roles with the company were: Bouncer in "Cox and Box" Associate in "Trial by Jury" The Foreman of the Jury in "Trial by Jury" The Judge in "Trial by Jury" Sir Marmaduke in "The Sorcerer" Bill Bobstay in "H.M.S.