Pam Ferris

Pamela E. Pam Ferris is a Germanborn British character actress. She starred on television as Ma Larkin in The Darling Buds of May, and as Laura Thyme in Rosemary amp Thyme, and has played parts in family films based on works by British authors as Miss Trunchbull in Matilda and as Aunt Marge in Harry Potter and the Prisoner of Azkaban, and most recently as Sister Evangelina in Call the Midwife.

Ferris was born in Hanover, Lower Saxony, Germany, to Welsh parents, while her father was serving in the Royal Air Force. Ferris spent her childhood in the Aberkenfig area, near Bridgend in Wales. Her father, Fred Ferris, was a policeman, and her mother, Ann Perkins, worked in her familys bakery business. Her family emigrated to New Zealand when she was 13. Ferris returned to the UK in her early 20s. In 1986, she married actor Roger Frost. She lives in Elham, Kent, South East England.

Source: Wikipedia