An engineer's daughter, she had first planned on becoming a ballerina, using her original Christian name Muguette, but abandoned those plans by the age of 17 when she realized that her physique was more in keeping with her other first name, Megs. She trained in Liverpool at the School of Dancing and Dramatic Art and then joined the Liverpool Repertory Company in 1933 before moving to London to appear at the Player's Theatre four years later.
During the 1950's, Megs was busy acting on stage and had considerable critical success in two plays by Emlyn Williams, 'Light of Heart' (1940) and 'The Wind of Heaven' (1945). Against character, she also played the vicious, unstable Alma Winemiller in 'Summer and Smoke' (1951) by Tennessee Williams. In 1956, she was awarded the Clarence Derwent Award as Best Supporting Actress for her role as the stoic wife of a longshoreman harbouring incestuous feelings for his niece in 'A View from the Bridge' by Arthur Miller. The previous year, she had made her Broadway debut in Chekhov's 'A Day by the Sea' as a supportive governess to an alcoholic physician.
Among her screen roles, best remembered are those of Nurse Woods in the excellent murder mystery La couleur qui tue (1947); her plump, homely innkeeper providing final happiness to the title character at the end of The History of Mr. Polly (1949)); and three of her many housekeepers : the proper one of Indiscret (1958), the nervously anxious one, sensing danger in Les innocents (1961) and the warm, dependable one in the musical Oliver! (1968). From the 1960's, Megs did a lot of television work, starred in her own series, Weavers Green (1966), as a country veterinarian, and even made tea bag commercials. Her versatility and popularity as an actress ensured that she was never out of work.
