So far, I've met the following.
Steve Jobs: Picture pending, but I did live in the same city and got a picture taking with him while trick or treating on October 31st, 2004.
Guy Fieri: A signing he was doing in like... 2007, I wanna say.
Dee Bradley Baker: Salt Lake Comic Con 2015.
And while he doesn't have a Wikipedia page, I did meet Kevin Hinkle at BrickFair VA 2016. Awesome guy.