 | Thomas Adlam als Self - Bedfordshire Regiment (voice) |
| William Argent als Self - Royal Naval Air Service (voice) |
| John Ashby als Self - The Duke of Cambridge's Own (Middlesex Regiment) (voice) |
| Attwood als Self - British Army (voice) |
| Walter Aust als Self - East Yorkshire Regiment (voice) |
| Donald Bain als Self - Seaford Highlanders (voice) |
| Thomas Baker als Self - Chatham Battalion, Royal Naval Division (voice) |
| George Banton als Self - 50th Division Headquarters (voice) |
| Walter Becklake als Self - Northamptonshire Yeomanry (voice) |
| Arthur Beeton als Self - Royal Navy Air Service (voice) |
| Peter Jackson | Producer |
| Clare Olssen | Producer |
| Jabez Olssen | Editor |
| Tessa Ross | Executive Producer |
| Hil Cook | Makeup Department Head |
| Peter Jackson | Director |
| Peter Jackson | Writer |
| Helen Luttrell | Dialogue Editor |
| Dave Whitehead | Sound Effects Editor |
| Michael Hedges | Sound Re-Recording Mixer |
| James Carroll | Foley Artist |
| Martin Kwok | Supervising Sound Editor |
| Liz McLelland | Compositor |
| Nachiket Kulkarni | Compositor |
| Steven Kaelin | Compositing Lead |
| Francisco Cubas | Online Editor |
| Andrew Moore | Assistant Sound Editor |
| Zach Smothers | Matte Painter |
| Thomas Haley-Hermiz | Visual Effects Technical Director |
| Phil Heywood | Sound Re-Recording Mixer |
| Alexis Feodoroff | Sound Re-Recording Mixer |
| Megan Graham | Compositor |
| Reginald Harber Jr. | Editor |
| Jon Newell | Colorist |
| Matthew Lambourn | Dialogue Editor |
| Ieva Cerps | Compositor |
| Tom Scott-Toft | Foley Editor |
| Hayden Collow | Sound Effects Editor |
| Jordan Lucchino | Compositor |
| Emile de la Rey | Supervising Dialogue Editor |
| Amin Taghipour | Digital Compositor |
| Andrew Kennedy | Visual Effects Technical Director |
| Matthew Wear | Colorist |
| Tim Willis | Online Editor |
| Nigel Stone | ADR Supervisor |
| Chris Todd | Dialogue Editor |
| Rob Gordon | Online Editor |
| Simon Riley | Foley Recordist |
| Brent Burge | Supervising Sound Editor |
| Matt Stutter | Dialogue Editor |
| Craig Tomlinson | Foley Editor |
| Jessica Grimshaw | Compositor |
| Jarrod Nichols | Compositor |
| Victor Manuel Fernandez | Compositing Lead |
| Wayne Stables | Visual Effects Supervisor |
| Elliot Travers | Assistant Editor |
