Disney Princess Thank You Cards

I make flash cards to help my 5 year old daughter to learn his letters and sounds associated. I try to make Disney Princess theme or character of Barbie theme, whether the main characters or important support characters. I have characters for most of the letters but I'm having problems with some. Can you help me find characters for the following letters:
I
N
Q
U
X
Y
Z
Thank you for your help!

I -
N - Nemo (from "Finding Nemo")
Q - Queen of Hearts.
U - Uncle Waldo (from "The Aristocats")
X -
Y - Yzma (from "The Emperor's New Groove")
Z - Zeus (from "Hercules") and Zira (Lion King 2)

Good idea, BTW - has an opinion on the characters starting with I & X.

Playing on answering # 1, I for Iago, the parrot in Aladdin
I could not get something for X.. I guess you're stuck with xylophone and X-ray!