Bryony Hannah is a British actress, best known as Cynthia Miller in BBC One's Call the Midwife.
Her other stage roles include performances in Earthquakes in London, Every Good Boy Deserves Favour, The Pillowman, The Merry Wives of Windsor and War Horse. In 2017, she appeared in the posthumous premiere of Olivier Award winner Kevin Elyot's final play Twilight Song, alongside Adam Garcia and Paul Higgins.
She also appeared in Dead Boss as Christine and provided the voice of Padget, Pando's carer, in the CBeebies TV series Bing.
She is best known for her work on Call the Midwife. Her character, Nurse Cynthia Miller, was in the initial cast of characters of season one. During the course of the show, Cynthia decided she was being called to a religious life, and she became a nun. Her character lived as a nun at Nonnatus House, where she also worked as a midwife. Hannah left the series after season six.
| 2010 | Cemetery Junction | Louise the Waitress | |
| 2015 | Jupiter Ascending | Nurse Schultz | |
| 2021 | The Last Duel | Alice | |
| 2023 | Firebrand | Ellen | |
| 2003 | Reversals | Female Student | Minor role, TV movie |
| 2011 | Life's Too Short | Brenda | 1 episode |
| 2012 | Above Suspicion | Felicity Turner | Series 4: "Silent Scream" |
| 2012–2017 | Call the Midwife | Cynthia Miller / Sister Mary Cynthia | Main cast, series 1-6 |
| 2012 | Dead Boss | Christine | 6 episodes |
| 2014-2019 | Bing | Padget | Recurring role |
| 2017 | Unforgotten | Cath | 4 episodes |
| 2021 | Death in Paradise | Rebecca Morley | 1 episode |
| 2022 | The Chelsea Detective | Erin Murphy | 1 episode |
| 2024 | Rivals | Deirdre Kilpatrick | Main role |
| 2025 | Ridge | 4 episodes | |
| 2012 | The Children's Hour | Mary Tilford | Olivier Award Nomination for Best Actress in a Supporting Role |
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