Dennis O'Neill is a Welsh operatic tenor and recording artist.
Die Fledermaus
1984
Andrew Lloyd Webber: The Royal Albert Hall Celebration
1998
Aida
1994
Verdi: Macbeth
1987
Der Rosenkavalier
1985
Mefistofele
1989
Kiri Te Kanawa: A Celebration Live at the Royal Albert Hall
2007
