Guest Stars Ralph Ineson as Steward Hart Miles Richardson as John Jacob Astor IV Diana Kent as Eleanor Widener Cian Barry as Fourth Officer Boxhall Olivia Darnley as Bessie Allison Angéla Eke as Madeleine Astor Georgia McCutcheon as Theresa Maloney Péter Kõszegi as George Widener Ifan Meredith as Fifth Officer Lowe Simon Paisley Day as Sir Cosmo Duff-Gordon Lloyd Hutchinson as Chief Steward Lattimer Larina Mészáros as Loraine Allison Ben Bishop as Stoker Lyons Shane Attwooll as Billy Blake Matt Devere as Boilerman Sally Bankes as Mrs. Gibson Joseph May as Giglio John Kazek as Steward Turnbull Will Keen as Chief Officer Wilde Beatrice Zentai as Woman 1 at Purser's Mike Kelly as Seaman Royce Alexis Latham as Man in Corridor Iain McKee as Seaman Scott Eszter Zakariás as Woman 2 at Purser's Richard Sutton as Second Officer Blair
