It tells the story of the invisible war fought by MI5 as it battles to protect the nation from the threats of the Cold War.
Trailer
Cast
Tom Hughes
Joe Lambe
Jonathan Aris
Alan Montag
Victoria Hamilton
Sarah Montag
Shaun Dooley
DC Jim Fenchurch
Brian Cox
Daddy
Paul Ritter
Bobby Waterhouse
Chloe Pirrie
Wendy Straw
Zana Marjanovic
Yulia
Yevgeni Sitokhin
Odin
Judy Parfitt
Hester Waterhouse
Marcel Iures
Arkady
SW
Stuart Whittaker
MI5 Agent
Gemma Chan
Chen Mei
Rachael Stirling
Kate
Rachael Stirling
Kate Wilkinson
Jay Simpson
Colin Blakefield
Tim Bentinck
Home Secretary
Velibor Topic
KGB Hood
BB
Bartley Burke
Ivan
Maaari Mo Ring Magustuhan
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