Guest Stars Matilda Ziegler as Christine Miller Danny Babington as SOCO Officer Claudie Blakley as Laetitia Gane Roger Allam as Simon Featherstonehaugh Christine Kavanagh as Pippa Featherstonehaugh Tony Haygarth as Bob Tamworth John Standing as Black Rod Hugh Sachs as Steve Sophie Bould as Penny Bohdan Poraj as Martin Richard Henders as Tim Sadler Pieter Lawman as Technician Garrick Hagon as Joseph Frady Janet Dale as Marie Ramsey Glyn Williams as Digicam Man Kevin Dignam as Owen James Pearse as Eric Ramsey Gawn Grainger as David Thompson Clive Merrison as Geoffrey Cramond David Mallinson as Peter Bellamy Uncredited Nick Turner as C.I.D.