Felicity Rose Hadley Jones (born 17 October 1983) is an English actress. She began her professional acting career as a child, appearing in The Treasure Seekers (1996) at age 12. She went on to play Ethel Hallow for one series of the television series The Worst Witch (1998). In 2008, she appeared in the Donmar Warehouse production of The Chalk Garden.…