What qualities does someone need to be a good actor?

I'd say emotional intelligence is absolutely crucial for actors - the ability to genuinely understand and portray different emotional states. Take Will Smith in "The Pursuit of Happyness" that I mentioned earlier - his performance felt so authentic because he could tap into that raw vulnerability of a struggling father. Another key quality is adaptability - actors often need to switch between completely different roles quickly. I remember watching a Chinese actor in a variety show who had to improvise different characters on the spot, and his ability to adjust his mannerisms instantly was impressive. That said, technical skills like voice projection and movement control are equally important - it's not just about feeling the emotions but also delivering them effectively to the audience.