Guy Pearce
Kim Philby (6 eps)
Damian Lewis
Nicholas Elliott (6 eps)
Anna Maxwell Martin
Lily Thomas (6 eps)
Stephen Kunken
James Jesus Angelton (6 eps)
Karel Roden
Sergei (6 eps)
Adrian Edmondson
Sir Roger Hollis (6 eps)
Nicholas Rowe
Sir Anthony Blunt (6 eps)
Monika Gossmann
Galina (6 eps)
Lucy Russell
Jane Sissmore (6 eps)
Lucy Akhurst
Elizabeth Elliott (6 eps)
Anastasia Hille
Flora Solomon (6 eps)
Jennifer Marsala
Iris (6 eps)
Gershwyn Eustache Jnr
Dr. Robert Thomas (6 eps)
Steven Elder
Tim Milne (6 eps)
Thomas Arnold
Guy Burgess (6 eps)
Alexander Terentyev
Orchis (6 eps)
Roger Barclay
John Profumo (1 eps)