After a successful and long standing career at the BBC, producing high end dramas such as Casualty and Keeping Faith, Gwenllian Gravelle is the Drama Commissioner for Welsh-language broadcaster S4C. Building on the recent renaissance of Welsh drama and the S4C led invention of Celtic noir, Gwenllian is focused on commissioning original drama that not only has a local feel but also a global world -class appeal. Her most recent commission is a compelling 6- part psychological thriller starring Joanna Scanlan, Alex Roach and Iwan Rheon . Y GOLAU/The Light in the Hall is S4C’s first co-pro with Channel 4/APC and Sundance NOW.