Thanks!!!!

That's our site! So glad it's actually helping people in their character searches!!
Sad that you didn't find the Little Einsteins - two people have posted this week about seeing them at MGM right near where JoJo meets. So maybe they will finally become regulars!!!
To the OP: That's terrible you didn't see any characters!! I felt similiarly on two of my recent trips - that there were hardly any "good" characters out. I swear, there were times when all I saw over and over again were Mickey, Minnie, Goofy, Chip, Dale, and Pluto!! But sometimes the time of year can affect if characters are out much, and I guess the heat of summer can limit things, and also few charcters appear in the late afternoon or night.
In May, you should be able to find characters out and about! Check the area right after entering Magic Kingdom (Town Square), as usually there are plenty of characters in the morning till early afternoon. The Character Connection Room at Epcot is good, too. At Animal Kingdom, the entrance area has characters, as well as Camp Minnie-Mickey.
Hopefully you'll find some good ones on your next trip!
