Hayden Panettiere acted the voice and motion capture of Sam in Until Dawn .
Other roles include her portrayal of the title character in the true crime drama Amanda Knox : Murder on Trial in Italy , the original voice actress for Kairi in the Kingdom Hearts series , voice and motion capture for Sam in Until Dawn developed by Supermassive games and Kirby Reed in the slasher film Scream 4 .
Hayden Panettiere