Born in Hereford, Gwilym Bowen was a choral scholar at Trinity College, Cambridge, where he graduated with double-First class honours in Music, subsequently studying at the Royal Academy of Music.
In opera, his diverse repertoire has included multiple roles in L'incoronazione di Poppea at Angers-Nantes Opera and Il ritorno di Ulisse in Patria at the Grange Festival, Pelléas Pelléas et Mélisande, Tom Rakewell The Rake’s Progress, Davey in Jonathan Dove’s Siren Song, Dwight/God in Jerry Springer: the Opera, Intelletto in Emilio de' Cavalieri's Rappresentatione di anima e di corpo and Lysander A Midsummer Night's Dream in Aldeburgh. He is regularly involved in new opera, having created the roles of Tamino in Be With Me Now at the Festival d'Aix-en-Provence, with performances at La Philharmonie de Paris, La Monnaie de Munt and the National Opera of Poland, the protagonists in two operas by Kate Whitley, Unknown Position and 0520, and Smith in Matt Rogers' and Sally O'Reilly's And London Burned.
In concert, Gwilym has sung the Evangelist in Bach's Johannespassion for John Butt and the BBC National Orchestra of Wales, Evangelist in the Matthäuspassion for the Nederlandse Bachvereniging, Bach cantatas with Masaaki Suzuki at Alice Tully Hall, New York City, Damon Acis and Galatea with the Academy of Ancient Music at London's Milton Court, Monteverdi operas with the AAM at the Barbican Hall in London, the Ateneul Roman in Bucharest and Scuola Grande di San Rocco in Venice, Mahler Das Lied von der Erde in Schoenberg's chamber arrangement with the City of London Sinfonia, Sylph in Rameau Zaïs with the Orchestra of the Age of Enlightenment at the Queen Elizabeth Hall, Handel Messiah with the Seattle Symphony Orchestra, West Australian Symphony Orchestra and Adelaide Symphony Orchestra for Stephen Layton, Bach Mass in B Minorand Johannespassion arias with the OAE at St John's, Smith Square, Handel Israel in Egypt and Solomon with the Holst Singers at Smith Square, Bach Weihnachts-Oratorium Evangelist for Ludus Baroque in Edinburgh and Oxford Philharmonic/Merton College Choir at the Sheldonian Theatre the Bach passions in the Jasna Góra Monastery in Częstochowa, Poland with Die Kölner Akademie and orkiestra historyczna, and Britten Serenade for Tenor, Horn and Strings for the Amersham Festival. Recordings include the Johannespassion arias with the Nederlandse Bachvereniging, and in a world-first Welsh language broadcast for S4C, and the Mass in B Minor with the Choir of Trinity College, Cambridge and the OAE.