Paulina Sartre was the Principal of Tregarren College (after Finding the Fox, and the death of Patrick Wood), the French teacher (she herself was French) and a physic and an empath. She worried a lot about all the students. When she read people's emotions, she'd hold their hands, and gives them a small static shock.
Her first name was Pauline.
She had auburn hair, grey eyes and glasses. Dax Jones called her "elegant".