We went to the Halloween party on October 3rd, 2003 and ate at LTT just before the party started. The characters were not in costume and the restaurant was not decorated for the party (other than pumpkin lanterns on the tables). However, the host and hostesses all had "ghoulish" make-up on their faces and they were lurching around when they seated people, which was pretty funny.
We had a PS for 6:20, but arrived early. To our surprise, we were admitted through the MK main gate when we arrived at 5:30 and were turned loose with only a purple wristband to identify us (not because of the PS- everybody was being admitted as they arrived). We got to the LTT around 5:40 and were seated right away. We finished dinner at 6:50, which was perfect timing.
We had never been to LTT before and thought the food was pretty good and the dinner a reasonable value. The dessert was apple cobbler a la mode and was quite good- so save room if you can!
Beatnik