Helen Deardorff is the headmistress of Methuen Home, the orphanage where Beth spends all her childhood. In the first sight, she looks sympathetic but after, Mrs Deardorff seems to hide some other traits.
She is especially smart in guessing all the girl’s actions even if she does not even see what they done. For example, she already knew that Beth has been playing chess above ground level with Shaibel and that they play with real chess. She appears in the final episode, leaning on a cane. She feels Beth’s presence even if she does not see her and orders her to hurry up.