Michael Sheen stars in Owain & Henry, opening in Cardiff on 5 November

Michael Sheen stars as Owain Glyndŵr in Owain & Henry, a new play by Gary Owen. It opens at the Donald Gordon Theatre, Wales Millennium Centre, Cardiff, on 5 November 2026 and runs to 28 November. The Welsh National Theatre co-production is a world premiere, co-directed by Sheen and Steffan Donnelly. Tickets start at £17.