Oh, okay, I'll add my brushes-with-celebrity.
I met Earnest Green (one of the Little Rock Nine) while volunteering on Bill Clinton's 1992 presidential campaign. I did not meet Bill.
I know the (a?) personal email address used by Tony Kaye (director of American History X), though it was sent to me as a forward from someone working on a project with him, and I've never tried to contact him (after reading the email that was forwarded, he seemed a bit mental).
I met Adrian Brody briefly, related to that same project, in 2011.
I had dinner with Penn Jillette, Kevin Pollak, and about 8 other people after a book discussion. Penn and I are Facebook friends, though we haven't really spoken since we had a disagreement involving a cat. I shared a dessert with Kevin Pollak.
I went to Hay Festival in June and had an embarrassing fangirl experience next to Bernie Sanders, in which security told me off (while apologizing for having to do it). My husband loved watching that! I did not get to actually meet or speak to Bernie, but I stood nearly elbow-to-elbow with him. (Edited to add: My husband was too busy laughing and enjoying the spectacle to take a picture.)
I think that's all of them. And I'm pretty sure my politics are evident, now. Anyway, other than Tony Kaye, who is British-born, but lives in LA, mine are all American.