Guest Stars Ben Crompton as Harry Townes Ciarán McMenamin as Declan McDermott Nicholas Burns as Captain Coutts Jodi Balfour as Sarah Fullwood Frederick Lau as Fiedler Nikolai Kinski as Walter Drexler Paul Hilton as Henry Bates Matthias Koeberlin as Rostau Hermanus Pieters as Dengler Oskar Brown as Waldemar Josef Du Plessis as Anthony Bates Rebekah Nathan as Charlotte Bates Lenny Wood as Billy Hardacre Simon Verhoeven as Harro Schacht Jörg Malchow as Weber Jacob Matschenz as Mannesmann Stefan Rudolf as Remmert Ludovico Fremont as Di Giovanni Matthew Aubrey as William Williams Louise Barnes as Mary Bates Morven Christie as Laura Ferguson Richard Wright-Firth as Quartermaster Lawrence Joffe as Rudzinski Tom Fairfoot as Wireless Operator Paul Savage as Customs Officer David Butler as George Steel