John Le Mesurier was a British actor, best known for his role as Sergeant Arthur Wilson in the popular television series Dad's Army. Born on April 5, 1912, in London, he had a long and varied career in film, television, and theatre, appearing in numerous productions throughout the 20th century. Le Mesurier's distinctive voice and calm demeanor made him a beloved figure in British comedy. He worked with many notable actors and writers, contributing to classic films and shows. He passed away on November 15, 1983, leaving behind a legacy of memorable performances.