I hate Jack Black. He's ADD funny, as in he's funny for a few seconds and then you want to do something else . . . and he's still there. Then you realize he's going to be there for the rest of the movie. That's when your eyes start to buldge and your ears begin to bleed.
As for actresses . . . well, aside from the obvious answer of Paris Hilton, I can't really think of any female actress that is so terrible that she deserves such an exaggeration like Jack Black.