These celebrities' personalities may not be what you're expecting. Sometimes an actor is so associated with one character that the lines between fact and fiction blur, and fans expect them to be just like their famous character in real life. Other times, the celebrity has carefully cultivated an image that may not always be entirely truthful. Sometimes the meanest characters are played by the nicest people, and sometimes celebrities who become famous for their family-friendly image are anything but. (Ever seen Bob Saget's stand-up?) Let's take a look at a few celebrities who may not be who you think they are.