Our first day at the Magic Kingdom had a ton of special moments meeting the characters.  Kian wants to meet any character he sees and is very outgoing so it usually makes for a fun experience.  We try to hold off on seeing them until the first hour of touring is over since the crowds are lowest and we can get through more attractions, but after that...he goes on  a mission to meet them.

As we were heading toward Thunder Mountain, we found Donald in his frontier had while passing through Frontierland.  You can find him in a set location close to Pecos Bill's.
Sarah loves Donald so everyone was happy to make this stop.
Just a few steps down the road we ran into Woody and Jesse, who were located just to the left side of Splash Mountain.  It wasn't a set location so I don't know how consistently you'll be able to find them there.
Kian Loves Jesse and you should have seen his face after this hug.  I thought her costume looked kinda creepy, lol.
Hidden around a corner directly behind Aloha Isle is a gazebo that houses various characters.  At this time, we ran into Prince Eric and Ariel in her human form.
The highlight of the day is when we found Aladdin and Jasmine near the Magic Carpet ride.
I've never seen a character spend so much time interacting with a child and Kian had an absolute blast!  I have a great video of their time together on the Facebook Page, go check it out and give the page a LIKE while you are there :)  From this point on I made sure to take video of the interactions and then switch over to pictures at the end.  We ended up capturing some great moments.