 | Sam Rockwell als Inspector Stoppard |
 | Saoirse Ronan als Constable Stalker |
 | Adrien Brody als Leo Köpernick |
 | Ruth Wilson als Petula Spencer |
 | Reece Shearsmith als John Woolf |
 | Harris Dickinson als Richard Attenborough |
 | Charlie Cooper als Dennis Corrigan |
 | Pippa Bennett-Warner als Ann Saville |
 | Pearl Chanda als Sheila Sim |
 | Sian Clifford als Edana Romney |
 | Jacob Fortune-Lloyd als Gio |
 | David Oyelowo als Mervyn Cocker-Norris |
 | Shirley Henderson als Agatha Christie |
 | Paul Chahidi als Fellowes |
 | Lucian Msamati als Max Mallowan |
 | Angus Wright als Sgt. Bakewell |
 | Tim Key als Commissioner Harrold Scott |
 | Gregory Cox als Major Metcalf |
 | Maggie McCarthy als Mrs. Boyle |
 | Ania Marson als Mother |
 | Philip Desmeules als Pierre |
 | Laura Morgan als Joyce |
 | Tolu Ogunmefun als Mr. Lyon |
 | Kieran Hodgson als Harley the Motorcycle Messenger |
| Gina Carter | Producer |
| Odile Dicks-Mireaux | Costume Design |
| Richard Bronskill | Orchestrator |
| Amanda McArthur | Production Design |
| John Reid | Supervising Art Director |
| Damian Jones | Producer |
| Mark DeSimone | ADR Mixer |
| Sophia Millar | Assistant Set Decoration |
| Daniel Pemberton | Original Music Composer |
| Jamie D. Ramsay | Director of Photography |
| Peter Lambert | Editor |
| Yesi Ramirez | Casting |
| Mark Chappell | Writer |
| Alex Watherston | Costume Supervisor |
| Luan Placks | Assistant Costume Designer |
| Paul Cotterell | Sound Re-Recording Mixer |
| Barnaby Smyth | Foley Supervisor |
| Amy Lockwood | Assistant Set Decoration |
| Nadia Stacey | Hair Designer |
| Nadia Stacey | Makeup Designer |
| Danny Sheehan | Supervising Sound Editor |
| Paul Carter | Sound Designer |
| Paul Carter | Sound Re-Recording Mixer |
| Patrick Christensen | ADR Mixer |
| Carolyn Cousins | Makeup Supervisor |
| Chris Navarro | ADR Mixer |
| Mark Baechle | Orchestrator |
| Kasper Pedersen | Dialogue Editor |
| Gary Dollner | Editor |
| Abbie Bellwood | Art Direction |
| Kashca Garwood-Walker | Costume Assistant |
| Sarah Bridge | Music Supervisor |
| Tim Barter | Visual Effects Supervisor |
| Mike Tehrani | ADR Mixer |
| Tom George | Director |
| Keith Partridge | Foley Mixer |
| Louise Seymour | Post Production Supervisor |
| Amy Diamond | Assistant Set Decoration |
| Zafar Janjua | Visual Effects Producer |
| Dan Victoire | Compositing Lead |
| Robert Haynes | Standby Art Director |
| Celia De La Hey | Set Decoration |
| Neil Wallace | First Assistant Director |
| Emma Burnand | Assistant Costume Designer |
| Amy Pollitt | Costumer |
| Robert Platt-Higgins | Post Production Coordinator |
| Tabitha Boyd | Art Department Coordinator |
| Martin Beresford | Production Sound Mixer |
| Liza Carmel | Unit Production Manager |
| James D. Etherington | Visual Effects Supervisor |
| Robin Baynton | Music Editor |
| Piotr Micyk | Set Dresser |
| Holly McLean | Costumer |
| Charlotte Ashworth | Costume Standby |
| Callum Mcnulty | Digital Compositor |
| Marianna Bourmpoula | Set Costumer |
| Suhaila Mahmoud | Digital Intermediate Producer |
| Julian Bale | Second Assistant Sound |
| James Devlin | Visual Effects Editor |
| James Devlin | VFX Editor |
| Alex Stylianou | ADR Recordist |
| Hannah Warren | Costumer |
| Jonathan Atkins-Pott | Digital Compositor |
| Blanca Del Pozo Cavallé De Moya | Rotoscoping Artist |
| Thomas Darby-Evans | Line Producer |
| Zainab Jaye | Makeup Artist |
| Nino Oz | Compositor |
| Monika Radwanska | First Assistant Editor |
| Andy Patterson | Music Editor |
| Elliot Barrett | Visual Effects Editor |
| Kerieann London | Makeup Artist |
| Natalie Scicluna | Script Supervisor |
| Tom O’Dell | Costumer |
| Jennie Shea | ADR Recordist |
| John Palfery Smith | Production Manager |
| Daniel Kearns | Art Direction |
| Thomas Ashby | Pipeline Technical Director |
| Jonathan Jean-Marie Wannyn | VFX Artist |
| Siân Venables | VFX Artist |
| Antonio Pavlov | VFX Artist |
