I just got back last night - with a cold and nose bleeds!!, was there Thursday 24th, Friday 25th and here's what I saw:
~ Goofy in a killer black and white skeleton costume!!! on main street.
~ Mickey Mouse in a purple and orange halloween tux type suit, main street.
~ Donald in a pumpkin outfit, not sure where he was coming from but saw him headed to a cast members only area near the Space Mountain exit.
~Pluto was also on main street but was normal and was not wearing a costume.
~Yes, there is a photo op stage set up near the intersection of Matterhorn and It's a Small World. There I saw, Snow White Queen, Snow White Witch, Cruella, Captain Hook, Queen of Hearts