This is an odd question. I'm assuming that it refers only to the living. There are many folks that have passed on that I would have loved to have met and learned from. I think it would be cool to hang out with Samuel L. Jackson for a day. Maybe play a round of golf. I have always admired his intensity in the roles he plays. Mike Rowe from the show Dirty Jobs would be fun to spend a day with too. He seems to be a genuine guy and always manages to laugh at himself. He's probably getting paid pretty well to do it but it comes off as genuine. There are others, but I just can't think of them right now.