Ah, I didn't seen any Type-Moon characters. I did see a Fate/Stay Night skit at the masquerade though. Anime Expo was amazing btw. I saw a TK from Angel Beats!! The only Angel Beats character I found in the entire 4 days. He said there was a Noda there too, but alas, I couldn't find him.
"Hah, I see, I see! Yeah, thats so much more important than who my master is! You're right, kid!" - Lancer
"Therefore, give me tea." - Okazaki Tomoya.