| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Adrian Rhodes | Crew | Sound | Sound Re-Recording Mixer | 2 |
 Adrian Shergold | Crew | Directing | Director | 2 |
Asa Shoul | Crew | Editing | Colorist | 2 |
Ben Bartlett | Crew | Sound | Original Music Composer | 2 |
Carol Saunderson | Crew | Directing | Script Supervisor | 2 |
 Chris Clough | Crew | Production | Producer | 2 |
Francis Hopkinson | Crew | Production | Executive Producer | 2 |
 Jeff Pope | Crew | Production | Executive Producer, Writer, Creator | 2 |
John Pearson | Crew | Writing | Book | 2 |
John Reid | Crew | Art | Art Direction | 2 |
 Kate Rhodes James | Crew | Production | Casting | 2 |
 Susannah Buxton | Crew | Costume & Make-Up | Costume Designer | 2 |
Tony Dawe | Crew | Sound | Sound Recordist | 2 |
Tony Slater-Ling | Crew | Camera | Director of Photography | 2 |
Tony Wilcock | Crew | Lighting | Gaffer | 2 |
Emily Russell | Crew | Production | Line Producer | 2 |
John Stevenson | Crew | Art | Production Design | 2 |
Tania Reddin | Crew | Editing | Editor | 2 |
Quentin Curtis | Crew | Production | Executive Producer | 2 |
Erin Duffy | Crew | Production | Production Coordinator | 2 |
Angie Mudge | Crew | Costume & Make-Up | Makeup Designer, Hair Designer | 2 |
Charlotte Ingham | Crew | Production | Researcher | 2 |
Francesco Reidy | Crew | Directing | First Assistant Director | 2 |
Owen Twort | Crew | Production | Unit Manager | 2 |
Tanvir Hanif | Crew | Visual Effects | Visual Effects Supervisor | 2 |
 Alan Cox | Cast | Actor | Ian Maxwell-Scott | 2 |
 Aleksandar Mikic | Cast | Actor | Ulrich | 1 |
 Alexander Campbell | Cast | Actor | PC Beddick | 1 |
 Alistair Petrie | Cast | Actor | Jimmy Goldsmith | 2 |
 Andrew Woodall | Cast | Actor | Bill Shand-Kydd | 2 |
 Ann Bell | Cast | Actress | Lady Osborne | 1 |
 Anna Walton | Cast | Actress | Jane Aspinall | 1 |
 Annabel Mullion | Cast | Actress | Annabel Birley | 2 |
 Catherine McCormack | Cast | Actress | Lady Lucan | 2 |
 Cavan Clerkin | Cast | Actor | DCI David Gerring | 1 |
 Christopher Eccleston | Cast | Actor | John Aspinall | 2 |
 Claudia Harrison | Cast | Actress | Christine Shand-Kydd | 2 |
 Gemma Jones | Cast | Actress | Dowager Countess of Lucan | 2 |
 Jane Lapotaire | Cast | Actress | Susie Maxwell-Scott | 2 |
 Michael Gambon | Cast | Actor | John Burke | 1 |
 Michael Müller | Cast | Actor | Dr. Flood | 1 |
 Paul Freeman | Cast | Actor | John Pearson | 2 |
 Rufus Wright | Cast | Actor | Younger John Burke | 2 |
 Ruth McCabe | Cast | Actress | Nanny Roberts | 1 |
Stuart Organ | Cast | Actor | Judge | 1 |
 Leanne Best | Cast | Actress | Sandra Rivett | 1 |
 Lydia Leonard | Cast | Actress | Melissa | 1 |
Matthew Flynn | Cast | Chief Superintendent Rogers | 1 | |
 Olivia Llewellyn | Cast | Actress | Kiki | 1 |
 Rory Kinnear | Cast | Actor | Lord Lucan | 2 |
 Rupert Evans | Cast | Actor | Dominick Elwes | 2 |
 Michael Marcus | Cast | Actor | James Fox | 1 |
 Helen Bradbury | Cast | Actress | Younger Susie Maxwell-Scott | 2 |
| Person | Type | Job | Role(s) | Episodes |
