Brad Pitt
Brad Pitt has his moments of being a good actor such as in Twelve Monkeys and Babel, but most of the time he's a cheese-bucket coasting by on his good looks and by doing whatever his girlfriends say. Let's reflect on Brad's lack of spine/interchangeable personality:
When he was dating Gwyneth Paltrow he was "the trendy guy partying in Soho", with Jennifer Aniston he was "the guy next door" and when he's dragging his feet behind Angelina Jolie he's the "goon with the silly hats, playing with his plethora of mixed-raced kids, casually ranting politics and humanity when all he should be doing is taking his shirt off". And he dresses like a clown too.