Yeah, I must almost never be where they have the one character at night, because I am wracking my brain trying to remember seeing any, other than parades at night! I remember in the old days, Tomorrowland Terrace (good times!), Mickey, Goofy, Minnie, etc. would come dance with the crowd.
I had my little visit in Toon Town with Mickey in his movie barn, at night.
Thats it! Oh, Tinkerbell for fireworks.