THEN: Charmian Carr as 'Liesl von Trapp'
Liesl, 16, is the oldest of the von Trapp children. She is in love with a telegram messenger named Rolfe, with whom she sings "Sixteen Going on Seventeen." Liesl initially rejects the idea of having Maria come live with the family, but eventually warms up to her. —XFINITY Entertainment Staff (Photo by 20th Century Fox)
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