Guest Stars Ruth Bradley as Sarah Sellars Elliot Levey as Ray Jubba Joseph Millson as Robert Fenner Gabriel Tierney as John Paul Martinelli Colum Convey as Marmaduke 'Duke' Ward Harriet Thorpe as Miss Newell Andrew Havill as Professor Lucius Stamfield Eleanor Fanyinka as Cecily Fenner Killian Coyle as George Sellars John Hollingworth as Dan Lofthouse Julian Moore-Cook as Jack Swift Tom Spink as Noel Baxter Evelina Jarrebring as Brigitte Eriksson Roxanne Palmer as Frida O'Rourke Angus Yellowlees as John Sarson Mia McCallum as Maggie Widdowson Christopher Brand as DS Bill Shaw Jacinta Mulcahy as Mrs Swift Lewis MacLeod as Eamonn Andrews
