9. Mark Wahlberg - The Happening
The culprit? Who else but M. Night Shyamalan. Now, this is kind of heartbreaking, because Marky Mark's been given a ton of flak throughout his career, stemming from his rap days. But I think he's a damn good actor, and I loved him in
The Departed (for which I think he should've won Best Supporting Actor, just saying). But M. Night? No excuses, man, the guy has just nose-dived since
The Village. While Wahlberg is still making movies (even dubious ones like
Pain & Gain), I think that his association with M. Night unfortunately put a damper on a thus-far decent career.