Guest Stars Ralph Ineson as Steward Hart Diana Kent as Eleanor Widener Simon Paisley Day as Sir Cosmo Duff-Gordon Georgia McCutcheon as Theresa Maloney Miles Richardson as John Jacob Astor IV Larina Mészáros as Loraine Allison Lloyd Hutchinson as Chief Steward Lattimer Ifan Meredith as Fifth Officer Lowe Péter Kõszegi as George Widener Angéla Eke as Madeleine Astor Olivia Darnley as Bessie Allison Cian Barry as Fourth Officer Boxhall Matt Devere as Boilerman Ben Bishop as Stoker Lyons Shane Attwooll as Billy Blake Joseph May as Giglio Sally Bankes as Mrs. Gibson 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
