12:30? That seems kind of late to me for a PS. I could be wrong, but it seems like I read a very recent post in which someone on DIS mentioned that you can still eat from the buffet at noon, but the characters from the breakfast/brunch shift leave at noon (and then another group of characters comes back at dinner). I don't know if that is true or not (we always eat there super early in the morning), but I wouldn't want to take a chance that the characters are gone. That time sounds iffy to me. Can you reschedule it to any other time, or maybe call Disney Dining back and ask them if they can verify that there will be characters there at that time?