Daniel was born in the Rhondda, South Wales, and trained at the Guildhall School of Music and Drama, London, where he was awarded an Honourary Fellowship in 2008.
For the Royal Shakespeare Company, Daniel played Flute and Lysander in A Midsummer Night’s Dream, the Boy in Henry V, Angelo in Measure for Measure and Posthumus in Cymbeline. For the Royal National Theatre, Daniel appeared in Peter Gill’s Cardiff East (Neil), Peter Pan (title role), Candide (title role), The Merchant of Venice (Lorenzo) and Troilus and Cressida (Patrocles). At the Royal Court Theatre, Daniel appeared in the world premières of Other People and Where Do We Live by Christopher Shinn and Cleansed and 4.48 Psychosis by Sarah Kane. Other work includes Osvald in Ghosts (ETT) and Betty/Edward in Cloud Nine (Crucible).
Daniel won an Olivier award for his performance as Charley Kringas in Merrily We Roll Along at the Donmar Warehouse, where he also played Otto Kingelein in Grand Hotel. His performance as George in Sunday In The Park With George at the Menier Chocolate Factory/Wyndhams Theatre gained him his second Olivier Award. Sunday in the Park With George transferred to Studio 54, New York, where Daniel received a Tony Award Nomination. Daniel also received the Ian Charleson award for his Ariel in The Tempest at the Sheffield Crucible and the Old Vic Theatre, London. In Wales, he was the recipient of the first Richard Burton award and the Llwyd o’r Bryn award at the National Eisteddfod. His film and television credits include The Passion, Great Expectations, Love in a Cold Climate, Daniel Deronda, The Virgin Queen, To The Ends Of The Earth, Tomorrow La Scala (BBC).
In concert, Daniel has sung with Bryn Terfel at the Faenol Festival, with Maria Friedman at the Barbican Concert Hall and with the London Sinfonietta at King’s Place.
Daniel is also a director and, in April 2009, was appointed Aristic Director of Sheffield Theatres, where his inaugural production was Ibsen’s An Enemy of the People