Mine isn't really a character one, but....
We love going to Hoop Dee Doo Revue, and took our son (then 1yrs) to it. Of the three actresses, he fell in love with the brunette who plays Flora. He followed her with his eyes, smiling and pointing at her the entire time. Couldn't care less for the other girls - Flora was it for him! We even asked the waitress if Flora could come over and snap a picture with him, and she did. We have the cutest picture of him just gazing at her.
Cut to this year around September, and our family is once again visiting the HDDR. Sure enough, the SAME actress is there playing Flora. And again, my little 2 yr old is entranced! We show our picture of Ds with Flora from the previous year, and she then tells the Flora that DS is here again. Flora comes over mid-dinner (there is a part when she sings to the audience) and she sings "Let me call you sweetheart" to him. Once again, he falls in love, giving her his big blue eyed look! She was absolutely thrilled that our boy remembered her!
It was the sweetest thing every, especially that she remembered him! The other actors made a big deal over him (Lily was a bit jealous!), and we once again have pictures of DS and his girl!