Stephen Dillane is a British actor best known for his role as Horatio in Franco Zefferelli's film adaptation of Hamlet (1990) and as Thomas Jefferson in the HBO mini-series John Adams (2008), receiving an Emmy nomination for the role.
He was cast as Stannis Baratheon for the second season of the medieval fantasy-drama television series Game of Thrones, in 2012. He also had a starring role as Rupert Keel, a founding partner of Byzantium and the director of its day-to-day operations who has turned the espionage skills he honed during the Cold War into a lucrative enterprise, in the mystery spy thriller television series Hunted, in 2012.
In 2013 he began starring as Karl Roebuck, an aging British detective used to getting his own way who finds himself drawn into an international hunt for a serial killer, in the British/French crime drama television series The Tunnel, adapted from the Danish/Swedish crime series The Bridge.
Dillane's extensive theatre work includes Hamlet and The Real Thing, for which he won a Tony Award. His other credits include The Hours, Goal! The Dream Begins, Spy Game, Welcome to Sarajevo, King Arthur and Coup.