Sean trained at the Royal Welsh College of Music & Drama. He has worked extensively in theatre, audio drama, television and film. Recent TV credits include Mudtown (BBCiplayer/S4C), Dal y Mellt (Netflix), His Dark Materials (BBC1), All Creatures Great and Small (Channel 5), A Mother's Love (Channel 4) and Series 5 of Stella (Sky1). Films include supporting leads in Boudica - Rise of the Warrior Queen, cult horror The Cleansing, Forgotten Journeys and Never Never Never directed by John Sheedy. Sean is perhaps best known to Doctor Who fans as Narvin in the Doctor Who audio series and has appeared on TV in Doctor Who - The Christmas Invasion and Torchwood.