Searxng/Legacy of Spies BBC tv Celebrity Dan Stevens stars as Bill Haydon in the new BBC/MGM+ adaptation of le Carré's 'Legacy of Spies'. A star-studded cast brings the iconic Cold War spy saga bac... April 14, 2026 AceShowbiz - The BBC and MGM+ have officially cast Dan Stevens to portray the complex spy Bill Haydon in their new adaptation of Legacy of Spies. This highly anticipated project brings together a notable ensemble including Felix Kammerer, known for All Quiet on the Western Front, and Agnes O'Casey, recognized for her work in Black Doves, who will play the pivotal role of Liz Gold.