 | Bella Ramsey als Birdy |
 | Billie Piper als Lady Aislinn |
 | Andrew Scott als Lord Rollo |
 | Lesley Sharp als Morwenna |
 | Joe Alwyn als Uncle George |
 | Sophie Okonedo als Ethelfritha Rose Splinter of Devon |
 | Paul Kaye als Sir John Henry Murgaw aka Shaggy Beard |
 | Dean-Charles Chapman als Robert |
 | Isis Hainsworth als Aelis |
 | Archie Renaux als Edward the Monk |
 | Michael Woolfitt als Perkin |
 | David Bradley als Lord Gideon Sidebottom |
 | Mimî M. Khayisa als Lady Berenice Sidebottom |
 | Ralph Ineson als Golden Tiger |
 | Rita Bernard-Shaw als Meg |
 | Jake Middleton Cooke als Alf |
 | Adam Aziz als Gerd |
 | Saskia Chana als Cornethia |
 | Jamie Demetriou als Etienne, Manservant to Shaggy Beard |
 | Akemnji Ndifornyen als Finneas the Steward |
 | Russell Brand als Suitor from Kent |
 | Christophe Tek als John of Normandy |
 | Angus Wright als Fulk the Elder |
 | Jacob Avery als Fulk the Younger |
 | Douggie McMeekin als Lord Rolf of Saxony |
| Lawrence Hodgson-Mullings als Godfrey of Glardenmere |
| Bola Latunji als Balthasar of the Low Country |
| Jessica Ellis als Laundress |
 | Jordan Adene als Mitten Man |
 | Tyler Howitt als Lord Sungerk of Dunkerk |
 | Jeffery Kissoon als Father Huy |
| Moya Brady als Nan the Midwife |
 | Ramesh Nair als Tiger Salesman |
| Antony Bunsee als Old Man |
 | Tim Bevan als Older Monk |
 | Colin Murtagh als Wedding Guest (uncredited) |
| Volenté Lloyd als Villager (uncredited) |
| Trevor Jones als Peter (uncredited) |
| Chris Ecob als Pastry Chef (uncredited) |
| Lena Dunham | Director |
| Lena Dunham | Writer |
| Karen Cushman | Novel |
| Tim Bevan | Producer |
| Lena Dunham | Executive Producer |
| Eric Fellner | Producer |
| Jo Wallett | Producer |
| Michael P. Cohen | Executive Producer |
| Tilly Coulson | Executive Producer |
| Liz Watson | Executive Producer |
| Carter Burwell | Music |
| Joe Klotz | Editor |
| Tim Blake | Supervising Art Director |
| Stella Fox | Set Decoration |
| Lotty Sanna | Set Decoration |
| Julian Day | Costume Designer |
| Suzi Battersby | Prosthetics |
| Cordelia Hardy | First Assistant Director |
| Toby Spanton | Second Assistant Director |
| Illias Thoms | Third Assistant Director |
| Freya Clarke | First Assistant Sound Editor |
| Zoe Freed | Foley Artist |
| Rebecca Heathcote | Foley Artist |
| Elo Soode | Concept Artist |
| Elo Soode | Conceptual Design |
| Nina Gold | Casting |
| Catriona Dickie | Casting |
| Laurie Rose | Director of Photography |
| Kave Quinn | Production Design |
| Agnes Debinska | Art Direction |
| Emily Norris | Art Direction |
| Alice Walker | Art Direction |
| Joe Withers | Art Direction |
| Amanda Willgrave | Set Decoration |
| Jo Best | Makeup & Hair |
| Tilly Calder | Makeup & Hair |
| Robb Crafer | Makeup & Hair |
| Marese Langan | Makeup Designer |
| Chris Lyons | Special Effects Makeup Artist |
| Denise Stocker | Makeup Artist |
| Andrew Whiteoak | Makeup & Hair |
| Mollie Denny Gelder | Set Decorating Coordinator |
| Steve Patterson | Set Decoration |
| James Hyde | ADR Mixer |
| Nina Norek | Dialogue Editor |
| Paolo Pavesi | Foley Editor |
| Mike Prestwood Smith | Sound Re-Recording Mixer |
| Jeremy Price | Sound Designer |
| Jemma Riley-Tolch | Foley Mixer |
| Jamie Roden | Sound Re-Recording Mixer |
| Paul Massey | ADR Mixer |
| Sheeraz Shah | Executive Producer |
