We know that actors have more intense performances than most, but what about the intensity?
Is there anything about their character that makes them so intense?
And if so, can we actually watch them perform their characters?
We sat down with the voice actors behind all of the biggest Hollywood stars to find out what makes them tick.
We also discuss their most memorable moments.
For more EW movies coverage, pick up the new issue of Entertainment Weekly, on newsstands Friday.