J.W.
We used Dora (the junior one, they have two) from http://www.firepixie.com/ for our daughter's third birthday last year. We had about a dozen kids ages 2 to 7 (boys and girls) there and she was great. My daughter still talks about when the real Dora came to her house. The same woman also does Snow White. We used the Jedi Knight for our son's 5th birthday. He wasn't as good, but then he had 17 5year old boys with light sabers to deal with. They will do their little "act" and then face painting and balloons. Enjoy!