| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Jon Jones | Crew | Directing | Director | 4 |
 Julian Fellowes | Crew | Writing | Writer, Creator | 4 |
Nigel Stafford-Clark | Crew | Production | Producer | 4 |
 Brian McCardie | Cast | Actor | First Officer Murdoch | 4 |
 Celia Imrie | Cast | Actress | Grace Rushton | 4 |
 David Calder | Cast | Actor | Captain Smith | 4 |
 Geraldine Somerville | Cast | Actress | Louisa, Countess of Manton | 4 |
 James Wilby | Cast | Actor | Bruce Ismay | 4 |
 Lee Ross | Cast | Actor | Barnes | 4 |
 Linus Roache | Cast | Actor | Hugh, Earl of Manton | 4 |
 Maria Doyle Kennedy | Cast | Actress | Muriel Batley | 4 |
 Mark Lewis Jones | Cast | Actor | David Evans | 4 |
 Miles Richardson | Cast | Actor | John Jacob Astor | 4 |
 Noah Reid | Cast | Actor | Harry Widener | 4 |
 Perdita Weeks | Cast | Actress | Lady Georgiana Grex | 4 |
 Peter McDonald | Cast | Actor | Jim Maloney | 4 |
 Peter Wight | Cast | Actor | Joseph Rushton | 4 |
 Ralph Ineson | Cast | Actor | Steward Hart | 4 |
 Richard Sutton | Cast | Actor | Second Officer Blair | 4 |
 Steven Waddington | Cast | Actor | Second Officer Lightoller | 4 |
 Sylvestra Le Touzel | Cast | Actress | Lady Duff Gordon | 4 |
 Timothy West | Cast | Actor | Lord Pirrie | 4 |
 Toby Jones | Cast | Actor | John Batley | 4 |
 Jenna Coleman | Cast | Actress | Annie Desmond | 4 |
 Jonathan Howard | Cast | Actor | Sixth Officer Moody | 3 |
 Lyndsey Marshal | Cast | Actress | Mabel Watson | 4 |
 Ruth Bradley | Cast | Actress | Mary Maloney | 4 |
 Sophie Winkleman | Cast | Actress | Dorothy Gibson | 4 |
 Stephen Campbell Moore | Cast | Actor | Thomas Andrews | 4 |
 Will Keen | Cast | Actor | Chief Officer Wilde | 4 |
 Antonio Magro | Cast | Actor | Mario Sandrini | 4 |
 Glen Blackhall | Cast | Actor | Paolo Sandrini | 4 |
 Ryan Hawley | Cast | Actor | Jack Thayer | 2 |
 Sophie Rundle | Cast | Actress | Roberta Maioni | 4 |
Georgia McCutcheon | Cast | Actress | Theresa Maloney | 4 |
| Person | Type | Job | Role(s) | Episodes |
