Certainly I've had the experience of thinking a person was one thing, and finding out they were another.
As an actor, you're always at the service of somebody else's vision. In a play, it's more of the director's vision, and he or she's got their hands on you all the way up to opening night, and if it's a film, there are even more people.
Acting is probably the greatest therapy in the world. You can get a lot stuff out of you on the set so you don't have to take it home with you at night. It's the stuff between the lines, the empty space between those lines which is interesting.

