Dennis O’Neill has appeared for all the major companies of the world, specialising in Verdi. In 2005 he was awarded the Verdi Medal by the Amici di Verdi in recognition of his work in that field.

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In his long relationship with the Royal Opera House, he appeared in over 200 performances centred around the great Verdian tenor roles. In North America his many appearances have included the Metropolitan Opera, San Francisco Opera and Chicago Lyric Opera.

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His extensive European career has taken him, most notably, to the Munich, Vienna, Paris, Berlin, Verona, Rome, Lisbon, Florence, Bologna, Barcelona and Milan.

He was appointed Commander of the British Empire for services to opera and many other acknowledgments include Honorary Membership of the Royal Academy of Music and the Order of St John.

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He gives master classes around the world, this season travelling to the Netherlands, Australia, New Zealand, Russia, Japan and Italy. A visiting professor at several institutions including the RAM and the Young Artists Programme at Covent Garden, Dennis is a frequent juror at international competitions.