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Ginnifer Goodwin, 'Big Love'
"Big Love," HBO
You know her as: Margene, the youngest of polygamist Bill Henrickson's three wives
Why we like her: Her exuberant performance as Margene captured what we suspect it might really feel like to be barely an adult and joining an extended and decidedly nontraditional family.
Where else you've seen her: She was Johnny Cash's first wife Vivian in "Walk the Line," Diane Snyder on "Ed" and Connie Barker in "Mona Lisa Smile."