Sylvestra was born in Jersey in the Channel Islands and raised in West London. She showed an interest in acting at an early age, enrolling at a Stage School. Subsequent television roles followed, including as Fanny Price in a 1983 adaptation of _"Mansfield Park" in his generally well received revival of the play 'Ivanov'.
Sister of Joshua Le Touzel.
She is a supporter of charitable theatre and is a patron of Montage Theatre Arts in London, along with fellow British actress Debby Bishop .
