Jean Sincere

• Birth year: 1919

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• Death year: 2013

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• Place of birth: Mount Vernon, New York, USA

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Jean Sincere "Sinny" Zambello (August 16, 1919 – April 3, 2013) was an American film, television, theater and voice actress. Her credits included the films Roxanne and The Incredibles, as well as recent roles in the television musical, Glee.