Like a high school delinquent, I don't usually do the SG homework, but I thought I'd check this one out because I can actually do it (unless you REALLY want to know why I want to become a Suicide Girl).
So here goes:
1) Neil deGrasse Tyson
This dude is pretty much the badass of the scientific community. I'd just get him to explain simple scientific concepts over dinner.
2) Tina Fey
The funniest woman alive.
3) Nicolas Cage
...because it's Nic Cage (NOT THE BEES!).