Dame Enid Diana Elizabeth Rigg, DBE (born 20 July 1938) is an English actress. She is known for the role of Emma Peel in the TV series The Avengers, which she appeared in from 1965 to 1968. She has also had an extensive career in the theatre, including playing the title role in Medea, both in London and New York. For this role, she won the 1994 Tony Award for Best Actress in a Play.