Alastair Sim was a Scottish actor who was active in the mid-20th century. He is best known for his roles in the 1951 film adaptation of Charles Dickens' 'A Christmas Carol' and the 1953 comedy 'The Belles of St. Trinian's'. Sim was born in Edinburgh, Scotland in 1900 and began his acting career in the 1920s. He was a prolific stage actor and appeared in over 50 films during his career. He was knighted in 1976 for his services to the performing arts.