I think Jane from Season 2 of Call the Midwife might have AS, or be on the spectrum somewhere...in episode 3, when she arrives at Nonnatus House, she's very quiet, keeps to herself, and when she does speak, it's very quiet and halted. She also seems to relate best to Sister Monica Jo (the eldest nun who seems to suffer from Alzheimer's disease), the visiting reverend from Sierra Leone, and the fish she wins at a fair. In episode 4, we discover that she grew up in a care home for children and young adults with disabilities and was then appointed a trustee, which is how she met Sister Julienne, one of the nuns at Nonnatus House. Later on, we see her going to a dance with the reverend (after much encouragement from the others), only to return to Nonnatus House and have an anxiety attack/meltdown of sorts after witnessing a physical fight outside the dance hall. She later confides in the reverend that life is "full of fears" for her, and that the reason why her parents sent her to the care home was because she would often wake up in the night screaming at the top of her lungs, and they didn't know how to react.
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I wish Sterling Holloway narrated my life.
"IT'S NOT FAIR!" "Life isn't fair, Calvin." "I know, but why isn't it ever unfair in MY favor?" ~ from Calvin and Hobbes