Poet Siegfried Sassoon survived the horrors of fighting in the First World War and was decorated for his bravery, but became a vocal critic of the government's continuation of the war when he returned from service. Adored by members of the aristocracy as well as stars of London's literary and stage world, he embarked on affairs with several men as he attempted to come to terms with his homosexuality.
| Directing | Terence Davies | Director |
| Writing | Terence Davies | Writer |
| Production | Michael Elliott | Producer |
| Production | Lucy Rands | Casting |
| Camera | Nicola Daley | Director of Photography |
| Editing | Alex Mackie | Editor |
| Production | Paul Ashton | Executive Producer |
| Production | Margarethe Baillou | Executive Producer |
| Production | Lizzie Francke | Executive Producer |
| Production | Rose Garnett | Executive Producer |
| Production | Peter Hampden | Executive Producer |
| Production | Jack Lowden | Executive Producer |
| Production | Norman Merry | Executive Producer |
| Production | Walli Ullah | Executive Producer |
| Art | Andy Harris | Production Design |
| Art | Adam Tomlinson | Supervising Art Director |
| Art | Alison Harvey | Set Decoration |
| Costume & Make-Up | Annie Symons | Costume Design |
| Costume & Make-Up | Veronica McAleer | Makeup Designer |
| Sound | Adam Fletcher | Production Sound Mixer |
| Sound | Brian Gilligan | Sound Re-Recording Mixer |
| Sound | Stephen Griffiths | Supervising Sound Editor |
| Sound | Rob Hughes | Sound Re-Recording Mixer |
| Visual Effects | John Paul Docherty | Visual Effects Supervisor |
| Visual Effects | Bonita Nichols | Visual Effects Producer |
| Costume & Make-Up | Debbie Williams | Costume Supervisor |
| Production | Deborah Aston | Co-Producer |
| Production | Stephen Kelliher | Executive Producer |
| Production | Jim Mooney | Executive Producer |
| Costume & Make-Up | Nargis Hussain | Makeup Trainee |
| Costume & Make-Up | Kara McAleer | Makeup & Hair Assistant |
| Costume & Make-Up | Marcia Blackwood | Daily Makeup & Hair |
| Crew | Jackie Vance | Post Production Supervisor |
| Production | John Taylor | Executive Producer |
| Costume & Make-Up | Veronica McAleer | Hair Designer |
| Sound | Ed Bailie | Music Supervisor |
| Sound | Abi Leland | Music Supervisor |
| Sound | Andy Shelley | Supervising Sound Editor |
| Directing | David Crabtree | First Assistant Director |
| Directing | Susanna Lenton | Script Supervisor |
| Production | Jen McKeown | Production Coordinator |
| Production | Helen Osborne | Assistant Production Coordinator |
