Pam Ferris
Pamela E. "Pam" Ferris (born 11 May 1948) is a British character actor. She starred on television as Ma Larkin in The Darling Buds of May, and as Laura Thyme in Rosemary & 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.