| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Agatha Christie | Crew | Writing | Novel | 3 |
 Karen Lindsay-Stewart | Crew | Production | Casting | 3 |
 Mark Murdoch | Crew | Production | Line Producer | 3 |
 Sandra Goldbacher | Crew | Directing | Director | 3 |
Roopesh Parekh | Crew | Production | Producer | 3 |
John Lee | Crew | Camera | Director of Photography | 3 |
Stuart Earl | Crew | Sound | Original Music Composer | 3 |
Sarah Phelps | Crew | Writing | Writer | 3 |
Basi Akpabio | Crew | Production | Executive Producer | 3 |
 Anna Chancellor | Cast | Actress | Rachel Argyll | 3 |
 Bill Nighy | Cast | Actor | Leo Argyll | 3 |
 Brian McCardie | Cast | Actor | Bellamy Gould | 3 |
 Christian Cooke | Cast | Actor | Mickey Argyll | 3 |
 Frances Grey | Cast | Actress | Lydia Gould | 3 |
 Matthew Goode | Cast | Actor | Philip Durrant | 3 |
Sandy Welch | Cast | Actress | Dr. Edwin Morsuch | 2 |
 Stuart McQuarrie | Cast | Actor | Doctor | 1 |
 Alice Eve | Cast | Actress | Gwenda Vaughan | 3 |
 Eleanor Tomlinson | Cast | Actress | Mary Durrant | 3 |
 Luke Treadaway | Cast | Actor | Dr. Arthur Calgary | 3 |
 Morven Christie | Cast | Actress | Kirsten Lindstrom | 3 |
 Ella Purnell | Cast | Actress | Hester Argyll | 3 |
 Anthony Boyle | Cast | Actor | Jack Argyll | 3 |
 Crystal Clarke | Cast | Actress | Tina Argyll | 3 |
 James E. Thompson | Cast | Actor | Blake (uncredited) | 1 |
Sandy Batchelor | Cast | Simon | 1 | |
Sammy Moore | Cast | Actor | Clive | 1 |
| Person | Type | Job | Role(s) | Episodes |
