Guest Stars Ralph Ineson as Steward Hart Diana Kent as Eleanor Widener Cian Barry as Fourth Officer Boxhall Simon Paisley Day as Sir Cosmo Duff-Gordon Olivia Darnley as Bessie Allison Miles Richardson as John Jacob Astor IV Angéla Eke as Madeleine Astor Péter Kõszegi as George Widener Lloyd Hutchinson as Chief Steward Lattimer Larina Mészáros as Loraine Allison Ifan Meredith as Fifth Officer Lowe Georgia McCutcheon as Theresa Maloney John Kazek as Steward Turnbull Shane Attwooll as Billy Blake Matt Devere as Boilerman Sally Bankes as Mrs. Gibson Jonathan Howard as Sixth Officer James Moody Gráinne Keenan as Laura Francatelli Tom Andrews as Seaman Hawkins Joseph May as Giglio Sophie Rundle as Roberta Maioni Christine Kavanagh as Marian Thayer Pandora Colin as Countess of Rothes Ryan Hawley as Jack Thayer Thomas Aldridge as Steward Taylor Laurie Hagen as Emma Sagesser Joséphine De La Baume as Madame Aubart Beatrice Zentai as Woman 1 at Purser's Eszter Zakariás as Woman 2 at Purser's Tim Downie as Policeman Kevin Lukács as American Valet Csongor Veér as Band Leader Geoffrey Thomas as American Valet Michele Moran as Prostitute Mátyás Ölveti as Cellist Izabella Urbanowicz as Alice Cleaver
