A former member of the Royal Shakespeare Company, he was known for his voice work in radio, animation, film, and video games. Jay was particularly noted for his distinctive baritone voice, which often led to him being cast in villainous roles. He was best known as the voice of Judge Claude Frollo in Disney's "The Hunchback of Notre Dame" (1996), Megabyte in "ReBoot" (1994–2001), Shere Khan in "The Jungle Book 2" and the TV series "TaleSpin", and the Elder God (plus various other roles) in the "Legacy of Kain" series of video games.