 | Helena Bonham Carter als Enid Blyton |
 | Matthew Macfadyen als Hugh Pollock |
 | Denis Lawson als Kenneth Waters |
 | Claire Rushbrook als Dorothy Richards |
 | Joseph Millson als Hanly Blyton |
 | Ramona Marquez als Imogen |
 | Lisa Diveney als Enid (aged 19) |
 | Pooky Quesnel als Theresa Blyton |
 | Eileen O'Higgins als Maid Maggie |
 | Douglas Reith als BBC Interviewer |
 | Nicholas Lumley als Dr. Beresford |
 | Sinead Michael als Gillian |
 | Philip Wright als Thomas Blyton |
| Alexandra Brain als Enid (aged 12) |
| Samuel Hilton als Hanly Blyton (aged 8) |
| James Warner als Carey Blyton (aged 4) |
 | Gabrielle Reidy als Mrs Waters |
| Nicholas Lumley als Dr Beresford |
| Claire Carrie als Betty |
| Travis Oliver als Army Officer |
| Toby Manley als Librarian |
 | Harry Taylor als Chauffeur |
| Sion Davies als Child at Party |
 | Isabella Blake-Thomas als Child at Party |
| James Hawes | Producer |
| James Hawes | Director |
| Ben Meechan | Supervising Sound Effects Editor |
| Lindsay Shapero | Writer |
| Lee Morris | Producer |
| Paul Heasman | Stunt Coordinator |
| David Chalstrey | Second Assistant Director |
| Nanw Rowlands | Third Assistant Director |
| George Batchelor | Floor Runner |
| Janice Schumm | Script Supervisor |
| Ian Pollington | Location Manager |
| Samuel Leek | Location Manager |
| Dan Turner | Assistant Production Coordinator |
| Karen Vicary | Production Accountant |
| Martin Payne | Focus Puller |
| Rachel Clark | Clapper Loader |
| Alistair Crocker | Production Sound Mixer |
| James Harbour | Sound Engineer |
| Kate Evenden | Art Direction |
| Matilda Wainwright | Standby Art Director |
| Katie Ralph | Standby Art Director |
| Nick Walker | Property Master |
| Matt Noble | Construction Manager |
| Mirka McNeill Farmer | Graphic Designer |
| Joanne Hayes | Costume Supervisor |
| Howard Bargroff | Sound Mixer |
| Ben Meechan | Sound Effects Editor |
| Kath Pollard | ADR Editor |
| Kath Pollard | Dialogue Editor |
| Kevin Horsewood | Colorist |
| Scott Hinchcliffe | Online Editor |
| Dolores McGinley | Visual Effects |
| Richard Cradick | Visual Effects |
| Chloe Strickland | Post Production Coordinator |
| Bob Morris | Casting Assistant |
| Anne Frederick | Unit Publicist |
| Nick Briggs | Still Photographer |
| Shelagh Stephenson | Associate Producer |
| Monique Mussell | Production Manager |
| Paul Judges | First Assistant Director |
| Jill Trevellick | Casting Director |
| Lisa Cavalli-Green | Hair Designer |
| Lisa Cavalli-Green | Makeup Designer |
| Lucinda Wright | Costume Designer |
| Nicholas Hooper | Music |
| David Roger | Production Design |
| Richard Cox | Editor |
| Matt Gray | Director of Photography |
| Eleanor Moran | Executive Producer |
| Sally Woodward Gentle | Executive Producer |
| Barbara Stoney | In Memory Of |
