Who is the most humble actor/actress in Hollywood?

Matthew McConaughey is probably the most humble actor in Hollywood. He lives modestly and has in the past even though he is worth millions. When he is not acting, he dresses as normal people do. He also talks just like everyone else. He seems to talk to everyone as if they are his best friend. Blue jeans and a t-shirt seems to be what he wears when he is not working which are things that most average people will wear.

His hair also seems like he probably gets it done by a regular barber and not someone who pays an enormous amount of money to style his hair. I can see him doing his own shopping instead of having an assistant do that for him and his family.