Dorothea Ames became head teacher at Coal Hill Academy in November 2016, replacing Frank Armitage, who had recently died.
Ames suggested that she worked with the mysterious Governors. When Miss Quill entered her office, she asked for her help with the invasion of killer petals. In return, Ames offered to removed the arn, giving Quill her free will back. (TV: Co-Owner of a Lonely Heart)