In Dec 2007 we saw Neil Patrick Harris multiple times over a couple of days. I literally ran into him at AK, then we saw him at Epcot a few times. He was the narrator for CP at that time - I absolutely LOVE

him and I was speechless when I ran into some guy, looked up at the person, and realized it was him. All I could manage was a creepy "Hi".
First two from AK, last one is in Epcot -we were seating in same row in car in Ellen's Energy Adventure as him as well, but I didn't think that I should whip out my camera during that!
I was there during the same time. I said to my friend, "that guy looks just like Doogie Howser MD", she said, "because he is Doogie". I couldn't think of his name at the time. We saw him coming off of Sorin'. When I was a merchandise CP, I rang up Brian Urlacker from the Chicago Bears, and I saw Kelly from 91210. She sent the VIP guide in to pay for her daughter's sucker.