Margaret Lockwood, CBE (15 September 1916 – 15 July 1990), was an English actress. Agatha Christie wrote the play Spider's Web on Lockwood's request. Christie also wrote a character suitable for the actress' daughter Julia to play.
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- 1954 - Spider's Web (West End production) as Clarissa Hailsham-Brown
- 1955 - Spider's Web (BBC Television) as Clarissa Hailsham-Brown