Sylvia Sidney (born Sophia Kosow; August 8, 1910 - July 1, 1999) was an American character actress of stage, screen and film, who rose to prominence in the 1930s appearing in numerous crime dramas. Sidney, born Sophia Kosow in The Bronx, was the daughter of Rebecca (nee Saperstein), a Romanian Jew, and Victor Kosow, a Russian Jewish immigrant who worked as a clothing salesman. The area from which Victor Kosow came from is today in Belarus. Her parents divorced by 1915 and she was adopted by her stepfather, Sigmund Sidney, a dentist. Her mother became a dressmaker and renamed herself Beatrice Sidney. Now using the surname Sidney, she became an actress at the age of fifteen as a way of overcoming shyness. As a student of the Theater Guild's School for Acting, Sidney appeared in several...'
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