Supergirl Cast Winn's Mom, but You'll Have to Wait a While to Meet Her

Supergirl put out an exciting piece of casting news today for fans of the adorably awkward Winn Schott (Jeremy Jordan).

TV Line reports that Laurie Metcalf has been cast as the mother of Supergirl's resident computer genius, but don't expect a happy family reunion. We know Winn's father earned

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