Pam Ferris

Pamela E. "Pam" Ferris (born 11 May 1948) is a British actress. She was born in Hanover to Welsh parents. She starred on television as Ma Larkin in "The Darling Buds of May", and as Laura Thyme in "Rosemary &amp; Thyme".
On movies, she is known for her roles as Miss Trunchbull in "Matilda" and as Aunt Marge in "Harry Potter and the Prisoner of Azkaban".