Guest Stars Ralph Ineson as Steward Hart Diana Kent as Eleanor Widener Miles Richardson as John Jacob Astor IV Ifan Meredith as Fifth Officer Lowe Cian Barry as Fourth Officer Boxhall Larina Mészáros as Loraine Allison Péter Kõszegi as George Widener Angéla Eke as Madeleine Astor Olivia Darnley as Bessie Allison Georgia McCutcheon as Theresa Maloney Lloyd Hutchinson as Chief Steward Lattimer Simon Paisley Day as Sir Cosmo Duff-Gordon Ben Bishop as Stoker Lyons Tom Andrews as Seaman Hawkins Jonathan Howard as Sixth Officer James Moody Joseph May as Giglio Sally Bankes as Mrs. Gibson Gráinne Keenan as Laura Francatelli Sophie Rundle as Roberta Maioni Christine Kavanagh as Marian Thayer Will Keen as Chief Officer Wilde Attila Bardóczy as Gatti's Waiter Ryan Hawley as Jack Thayer Pandora Colin as Countess of Rothes Laurie Hagen as Emma Sagesser Joséphine De La Baume as Madame Aubart Istvan Koncz as Gatti's Waiter Thomas Aldridge as Steward Taylor Luke Norris as Seaman Holmes Richard Southgate as Youth with Jack Lili Horvath as Woman 1 in Lifeboat Margaréta Szabó as Woman 2 in Lifeboat Dave Legeno as Seaman Davis
