Miss Artemis Fritton, great-granddaughter of the original founder of St. Trinians School for Young Ladies. She's a handsome lady in her late 30s or early 40s. She is herself an ex-pupil, who moved onto the staff as a tutor as soon as she finished her time at University (she did not graduate - she was expelled form Oxford for behavour that brought the university into disrepute.) Having spent most of her life at the school, Miss Fritton is aware of almost every possible trick the girls might try to pull, and has done most of them herself at one time or another. However, she also encourages and supports the girls, and so long as they do not put the school or lives at undue risk, she is the best friend they could have. She is universally respected, and her wrath is enough to cause girls to run screaming.