 | Colin Firth als Donald Crowhurst |
 | Rachel Weisz als Clare Crowhurst |
 | David Thewlis als Rodney Hallworth |
 | Mark Gatiss als Ronald Hall |
 | Genevieve Gaunt als 'Miss Teignmouth' |
 | Jonathan Bailey als Ian Wheeler |
 | Andrew Buchan als Ian Milburn |
 | Simon McBurney als Sir Francis Chichester |
 | Eleanor Stagg als Rachel Crowhurst |
 | Ken Stott als Stanley Best |
 | Finn Elliot als James Crowhurst |
 | Kit Connor als Simon Crowhurst |
 | Oliver Maltman als Dennis Herbstein |
 | Sam Hoare als Mr. Hughes |
 | Avye Leventis als Mrs. Hughes |
 | Anna Madeley als Sara Milburn |
 | Adrian Schiller als Mr. Elliot |
 | Simon Chandler als Sidney Rawle |
 | Alexia Traverse-Healy als Françoise Moitessier |
 | Dorothy Atkinson als Eve Tetley |
 | Sebastian Armesto als Nelson Messina |
 | Martin Marquez als Franchessi |
 | Mark Davison als Band Leader |
 | Bruce Mackinnon als Barman |
 | Richard Teverson als BBC Interviewer |
 | Kerry Godliman als 'Bear and Swan' Landlady |
 | Laurence Spellman als Benefits Officer |
 | Greg Hicks als Captain Box |
| Richard Blaine als Chamber Member |
| Geoff Bladon als Mayor of Teignmouth |
| Maynard Crowe als Portishead Messenger |
 | Paul Thornley als Portishead Operator |
 | Stuart Davidson als Press Photographer |
| Robert Elphick als Reporter |
 | Tim Downie als Style Editor |
 | Ray Burnet als George |
 | Zara Prassinot als Waterskiing Girl |
| James Marsh | Director |
| Scott Z. Burns | Writer |
| Jóhann Jóhannsson | Original Music Composer |
| Jinx Godfrey | Editor |
| Graham Broadbent | Producer |
| Scott Z. Burns | Producer |
| Peter Czernin | Producer |
| Nicolas Mauvernay | Producer |
| Jacques Perrin | Producer |
| Éric Gautier | Director of Photography |
| Dan MacRae | Executive Producer |
| Diarmuid McKeown | Executive Producer |
| Jonny Persey | Executive Producer |
| Caroline Hewitt | Co-Producer |
| Ben Knight | Co-Producer |
| Joan Sobel | Editor |
| Lucy Bevan | Casting |
| Olivia Scott-Webb | Casting |
| Jon Henson | Production Design |
| Tom Cochrane | Art Direction |
| Karl Probert | Art Direction |
| Justin Warburton-Brown | Art Direction |
| Robert Wischhusen-Hayes | Set Decoration |
| Alexander Bellizia | Sound Editor |
| Jim Philpott | Grip |
| Jerry Ramsbottom | First Assistant Editor |
| Andrew Munro | Supervising Art Director |
| Louise Stjernsward | Costume Design |
| Emma Faulkes | Special Effects Makeup Artist |
| Alex King | Makeup & Hair |
| Marese Langan | Makeup Designer |
| Marese Langan | Hair Designer |
| Claudia Stolze | Makeup & Hair |
| Christine Walmesley-Cotham | Makeup & Hair |
| Alistair Hopkins | Post Production Supervisor |
| Cass Marks | Production Manager |
| Ben Quirk | Second Second Assistant Director |
| Deborah Saban | First Assistant Director |
| Harriet Worth | Second Assistant Director |
| Louise Begbie | Graphic Designer |
| Dan Crandon | Construction Coordinator |
| Dan Marsden | Construction Manager |
| Dan Maslen | Storyboard Artist |
| Adam McCreight | Property Master |
| Elo Soode | Concept Artist |
| Phillip Barrett | Foley Supervisor |
| Johnnie Burn | Sound Designer |
| Simon Carroll | Sound Effects Editor |
| Danny Hambrook | Sound Recordist |
| Paul Hanks | Foley Artist |
| Tom Harrison | Boom Operator |
| Joe Mount | Sound Effects Editor |
| Andrew Stirk | Dialogue Editor |
| Simon Trundle | Foley Mixer |
| Neal Champion | Special Effects Supervisor |
| Edd Gamlin | Visual Effects Editor |
| Nick Chopping | Stunt Coordinator |
| Adrian Mulville | Stunt Double |
| Daniel Rawlins | Stunt Double |
| Warren Brimmer | Drone Operator |
| Mark Clayton | Gaffer |
| Barny Crocker | First Assistant "B" Camera |
| Mario Demanuele | Drone Pilot |
| Woody Gregson | Second Assistant "B" Camera |
| Dai Hopkins | Key Grip |
| Richard Jakes | Second Assistant Camera |
| Alistair King | Second Assistant Camera |
| Henry Landgrebe | First Assistant Camera |
| Aerial Malta | Aerial Director of Photography |
| Nathan Mann | First Assistant Camera |
| Dean Rogers | Still Photographer |
| James Summers | Rigging Gaffer |
| Richard Tyson | Assistant Camera |
| Hannah Walter | Costume Supervisor |
| Anna Reynolds | Assistant Costume Designer |
| Danny Miller | First Assistant Editor |
| Matt Biffa | Music Supervisor |
| Dina Eaton | Music Editor |
| Julia Chiavetta | Script Supervisor |
| Bojana Dimitrovska | Production Secretary |
| Karina Hansford | Production Accountant |
| Adam Hughes | Production Coordinator |
| Mario Mangion | Set Medic |
| Nadine Pecorella | Assistant Production Coordinator |
| Rob Seager | Production Accountant |
| Elo Soode | Conceptual Design |
