Guest Stars Nicholas Rowe as Sir Anthony Blunt Lucy Akhurst as Elizabeth Elliott Lucy Russell as Jane Sissmore Anastasia Hille as Flora Solomon Gershwyn Eustache Jnr as Dr Robert Thomas Alex Price as Watcher Karel Roden as Col. Sergei Brontov Daniel Lapaine as Donald Maclean Rick Warden as Arthur Martin Jay Simpson as MI6 Cabbie Colin Mace as Commissionaire Steven Elder as Tim Milne Anna Andresen as Aileen Philby Jed Aukin as American Reporter Reza Diako as Henri Thomas Arnold as Guy Burgess Jolyon Coy as Desmond Bristow (Boris) Nicholas Pritchard as Dick 'C' White Denis Khoroshko as Vladimir Harry McEntire as Ernie Wise Neil Grainger as Eric Morecambe Duncan MacInnes as Dick Janeks Babidorics as Sailor Oscar Batterham as Waiter Sam Philip Dunning as Sid