 | Asa Butterfield als Adrian Healey |
 | Charles Dance als Tickford |
 | Rupert Everett als Humphrey Biffen |
 | Tom Wilkinson als Trefusis |
 | Sally Phillips als Beryl |
 | David Walliams als Hesketh-Harvey |
 | Miles Jupp als Dr. Meddlar |
 | Ethan Lawrence als Trotter |
 | Jeff Goldblum als Donald Trefusis |
| Tony Hagger | Director |
| Tony Hagger | Writer |
| Stephen Fry | Novel |
| Stephen Fry | Executive Producer |
| Tony Hagger | Producer |
| Alison Newell | Production Executive |
| Steve Newton | Line Producer |
| Gary Shaw | Director of Photography |
| Gavin James | Executive Producer |
| Jessie Frost | Casting |
| Jina Jay | Casting Director |
| Eve Stewart | Production Design |
| Douglas Ingram | Storyboard Artist |
| Charlotte Biermann | Script Editor |
| Yassmine Najime | Manager of Operations |
| Alison Newell | Producer's Assistant |
| Guy de Beaujeu | Producer |
