Emma Thompson (born 15 April 1959) is a British actress, comedian, and writer. She is known for her portrayals of reticent women, often in period dramas and literary adaptations, and playing haughty or matronly characters with a sense of irony. She is considered one of Britain's most accomplished actresses.

Born in London to English actor Eric Thompson and Scottish actress Phyllida Law, Thompson was educated at Newnham College, University of Cambridge, where she became a member of the Footlights troupe. After appearing in several comedy programmes, she first came to prominence in 1987 in two BBC TV series, Tutti Frutti and Fortunes of War, winning the BAFTA TV Award for Best Actress for her work in both. Her first film role came in the 1989 romantic comedy The Tall Guy, and in the early 1990s she frequently collaborated with her then husband, actor and director Kenneth Branagh. The pair became popular in the British media, and co-starred in several films including Dead Again (1991) and Much Ado About Nothing (1993).