Most child performers are recalled for their Shirley Templesque sweetness; others for being "awful bad" such as Jane Withers. But no child actor can boast a role as memorably malicious, evil, psychotic and twisted as Patty McCormack, who played Rhoda Penmark, the petite blonde-braided girl who seems so neat, clean and perfect, but who kills a schoolmate because he won a penmanship award she…
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