Mrs. Sackville is a Crier that can be found in a small tea garden area in St. George's Holm. In Act One, Arthur notices her crying. She apologises, promising she'll stop crying and take her Joy. Arthur reassures her saying her secret is safe. Mrs. Sackville then admits she misses them. Arthur agrees, only to realise she was talking about her lilies, not the children. Her daughter Violet and her grew lilies, but Violet's husband got jealous. She is one of the few remaining vegetable gardeners in Wellington Wells. After Arthur gives her lily bulbs, she gives him the key to her secret garden.
- She is one of guest questioners in the rehabilitation centre test "Oh Behave" during Act One.