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