If you were to list all of the ideal qualities an actor should possess, then you would have a list longer than you would care to read. While there are possibly thousands of personality qualities an actor must obtain, one of the most important of these, as well as one that encompasses many other qualities, is empathy.
In order to accomplish the primary goals of acting, which is to give/receive and connect on an emotional level, you must understand how to engage in true empathy. As an actor, you must understand how empathy affects your acting, and how this mental process allows you to seamlessly connect and interact with your fellow actors.
by Prior Aphter