41. Hilary Duff
Worst Performances: Material Girls (2006), War, Inc. (2008)
Look, the truth is that, yes, Hilary Duff has consistently given performances that emphasize her "I'm so cutesy" persona and drowned out any emotional weight whatsoever. If someone were to ask a stranger to name one good piece of Duff acting, the interviewee would probably fail to cite a movie he or she can remember her being in, let alone one that flick Duff owned. But here's the thing: Somehow, Duff has avoided the career downfalls of peers like Lindsay Lohan and Amanda Bynes to simply work as a mid-tier actress. And frankly, that's impressive enough.