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