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In page Mary Clare:

"

In the theatre, she became one of Noël Coward's "leading ladies" appearing in several of his plays, in particular, Cavalcade in 1931. In September 1936 she played the leading role in the play Laura Garnett, by Leslie and Sewell Stokes, at the Arts Theatre Club, London and played the lead role of the victim in Agatha Christie's 1945 play Appointment with Death. In 1960, she appeared in Noël Coward's 50th play Waiting in the Wings with Sybil Thorndike.[citation needed]