| Person | Type | Job | Role(s) |
|---|---|---|---|
 Ed Taylor | Crew | Production | Executive Producer |
Ros Edwards | Crew | Production | Executive Producer |
Dee Hendry | Crew | Production | Production Director |
Beth Sayer | Crew | Editing | Online Editor |
Tom Reece | Crew | Camera | Camera Operator |
Steve Cheshire | Crew | Sound | Sound Mixer |
Sean Davison | Crew | Directing | Director, Editor |
Marie-Jo Rosalba | Crew | Production | Production Manager |
Patricia Walsh | Crew | Production | Production Coordinator |
Pamie Wikstrom | Crew | Art | Set Designer |
 Agatha Christie | Cast | Actress | Self - Writer (archive footage) |
 Amanda Abbington | Cast | Actress | Self - Actor |
 Anthony Horowitz | Cast | Actor | Self - Screenwriter and Author |
 Damien Timmer | Cast | Actor | Self - Executive Producer, Agatha Christie adaptations |
 Hugh Fraser | Cast | Actor | Self - Lt. Hastings, ITV's Poirot |
 Nigel Havers | Cast | Actor | Self - Narrator (voice) |
 Philip Jackson | Cast | Actor | Self - Inspector Japp, ITV's Poirot |
 Samantha Bond | Cast | Actress | Self - Actor |
 Sophie Hannah | Cast | Actress | Self - Author, Poirot Sequels |
 Laura Thompson | Cast | Actress | Self - Agatha Christie's Biographer |
 James Prichard | Cast | Actor | Self - Agatha Christie's great grandson |
 Sheila Atim | Cast | Actress | Self - Actor |
Basi Akpabio | Cast | Actor | Self - Creative Director, Agatha Christie Ltd |
 Mark Aldridge | Cast | Actor | Self - Author |
John Risdon | Cast | Actor | Self - Torquay Historian |
Belinda Smith | Cast | Actress | Self - Agatha Christie's home, Greenway |
| Person | Type | Job | Role(s) |
