[1] Jones was born in Cardiff, to a Welsh father (from Carmarthenshire) and an Irish mother (from County Mayo), and is a dual-nationality citizen of the United Kingdom and Republic of Ireland.
[9] He appeared for Longborough Festival Opera as Wotan in Die Walküre (2021) and Siegfried (2022), and is due to reprise the role in their full cycle of Der Ring des Nibelungen in 2024, in a production directed by Amy Lane and conducted by Anthony Negus.
Their collaborations include Scarpia (Tosca), Verdi's Macbeth, Father (Hansel and Gretel) and Noye (Noye's Fludde) for Northern Ireland Opera;[14] Scarpia (Tosca) and Speaker (The Magic Flute) for Nevill Holt Opera; and Sam (Trouble in Tahiti) and Monsieur Juste (The Three Wishes) for Second Movement.
[24] On DVD, Jones appears as Andy Warhol on Dynamic's 2009 recording of Michael Daugherty's Jackie O, and in various roles on the BBC's 2005 film of Rachel Portman's The Little Prince.
[27] Since 2021 Jones has been a member of the steering group of the voluntary campaigning organisation Freelancers Make Theatre Work,[28] being particularly active on the impact of Brexit on the performing arts industry in the UK.