"I think the more the actor lets you know what he thinks of the character, the less the audience cares - like a comedian who laughs at his own jokes"

This quote by Neil LaBute suggests that when a star reveals excessive of their viewpoint of the character they are playing, it can have a negative impact on the audience. It is as if the actor is laughing at their own jokes, which can be off-putting to the audience. LaBute is suggesting that the star needs to stay rather distant from the character they are playing, so that the audience can form their own viewpoint of the character. This allows the audience to become more bought the story and the character, as they are not being told what to believe. LaBute is highlighting the importance of subtlety in acting, as it enables the audience to form their own viewpoint and end up being more participated in the story.