Guest Stars Lydia Leonard as Marion Greenwood Samuel West as Lt Col James Wintringham Tony Haygarth as Leo Maccoby Dave Hill as Fenner Murray McArthur as Guard at Hill House Deborah Findlay as Mrs Thorndyke Timothy Carlton as Admiral James Francis Rupert Frazer as Commander Charles Howard Markus Napier as German SD Officer Angela Thorne as Lady Anne Messinger Amanda Pointer as Admiralty Receptionist Ronald Pickup as Sir Giles Messinger Timothy Kightley as Cooper John Grillo as Pilkington Goran Kostic as Jan Komoroski William Scott-Masson as Dumont Paul Brennen as Eric Stafford Raymond Coulthard as Nicholson