Carnival Films and BBC Two are set to produce two further TV movies in David Hare's "The Worricker Trilogy" following 2011's "Page Eight".
Bill Nighy and Ralph Fiennes will reprise their roles as British intelligence officer Johnny Worricker and Prime Minister Alec Beasley respectively for both projects.
Joining them on the second film in the series, "Turks and Caicos," are Christopher Walken, Winona Ryder, Helena Bonham Carter, James Naughton, Dylan Baker and Zach Grenier.
Ewen Bremner is also reprising his role in both, while Judy Davis, Saskia Reeves and Kate Burdette will reprise their roles in the final film entitled "Salting The Battlefield". Bonham Carter and Malcolm Sinclair also star.
In the first film, Worricker (Nighy) uncovered a plot to turn control of MI5 directly over to the prime minister after the head of the organization's death.
'Turks' picks up after Worricker leaves his MI5 post and heads to the Turks & Caicos islands where the CIA forces him to deal with a group of ambiguous Americans who are there for a high-level conference.
At the same time, an old girlfriend is being asked to betray her boss in London in order to establish an illicit connection between the prime minister and dark goings-on in the war on terror.
The third film sees Worricker and the girlfriend on the run from MI5 until Worricker returns home to confront the prime minister in a duel of wits.
David Heyman, David Barron and Celia Duval will produce. No production date is yet set.