1). Paul Walker - I can't stand watching this guy. He just can't act, and he keeps showing up in these action movies that require a little bit of acting ability that he just doesn't have. It makes sense that his last name is Walker because every time he is on screen, that's what i become...."A Walker" away from his movies.
Worst Performance: The Fast and the Furious
2). Jessica Alba - Is she beautiful? Without a doubt. Is she super sexy? Yes indeed. But can she act? Nope. Just watch Machete. Funny movie and I love Robert Rodriguez movies, but she was just hard to watch.
Worst Performance: Machete
3). Dane Cook - Is he funny? Extremely. I saw him in concert. He's hysterical. But he needs to just do that. He can't act. He just can't. Dane Cook....just stick to stand up comedy.
Worst Performance: Dan In Real Life
4). Megan Fox - Just like Jessica Alba. Is she incredibly sexy? Unbelievably sexy, but she can't act. Her looks will continue to put her in movies and that's fine. It's probably the only reason she was in Transformers 2. She was not missed in Transformers 3.
Worst Performance: Transformers: Revenge of the Fallen
5). Channing Tatum - Some of his line deliveries are just awkward. And there was a ton in G.I. Joe. He's just not that good. He's in some upcoming comedies so we'll see if does any better in those.
Worst Performance: G.I Joe
Honorable Mentions - Ashton Kutcher - Miley Cyrus - Paris Hilton - Jessica Simpson
So that's my list. These people just can't hack it. Yes Indeed.