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