Margaret Ollerenshaw is an English actress, known for playing the role of Mavis in the BBC sitcom Open All Hours and its sequel Still Open All Hours. Her other television credits include First of the Summer Wine, The House of Eliott and Lovejoy.
An orphaned boy enrolls in a school of wizardry, where he learns the truth about himself, his family and the terrible evil that haunts the magical world.
![The Harry Potter saga [2011-2021]](https://assets.mycast.io/posters/the-harry-potter-saga-2011-2021-fan-casting-poster-398601-large.jpg)