Kimi, the lamest character.
I really hate Kimi Finster she's really useless , she doesn't have personality and she whines when things don't go the way she wants.
Kimi gets more episodes and the problem with this episodes is that it's dealing with one character that wasn't really designed to act as a stand alone effectively. It's more subplot material than actual main plot, Kimi is always overshadowed by Characters like Chuckie , Angelica or even an actual background character like Harold, it can't be seen nothing strong or solid to her character's psychological core up to now compared to the others.
I even have my petition online to remove her from All Grown Up, I have my hopes that will improve the show:
http://www.petitiononline.com/AK15974/petition.html