HomePeople Biography and filmographyDennis O'Neill Dennis O'Neill is a Welsh operatic tenor and recording artist. Movies (7)TV shows (0) Photos Movies (7) Kiri Te Kanawa: A Celebration Live at the Royal Albert Hall2007 · Self Andrew Lloyd Webber: The Royal Albert Hall Celebration1998 · Self - Performer Aida1994 · Radames Mefistofele1989 · Faust Verdi: Macbeth1987 · Macduff Der Rosenkavalier1985 · Sänger Die Fledermaus1984 · Alfred TV shows (0) No credits available.