Best known for playing indestructible teen Claire Bennet on NBC's cult series Heroes, Panettiere portrays a much more normal high schooler in Scream 4. Her sharp-witted Kirby is also a closet movie buff.
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Emma Roberts, Alison Brie, Anthony Anderson -- there's lots of new meat, er, actors on tap for the horror sequel. Find out who's who...before they're gone.
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