Mildred "Millie" Burtonburger is a character from the YTV animated series Kid vs. Kat. She is Coop Burtonburger's younger sister who is always defending Kat no matter what he does or is blamed for doing. She is the typical annoying younger sibling to Coop, but she does seem to appreciate when he hangs out with her, willing or forced.
Appearances in Christmas specials
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