- "When I say "Lou", you say "Eze"! Lou!"
- ―Millie's first line.
Millie Frock is the main villain of Bob's Burgers episode "Fort Night". She appears to be the age of Louise Belcher. She is convinced she is friends with Louise when in reality, she is just an annoyance. Millie trapped the Belcher kids in their fort on Halloween night because of Louise's resistance to be her friend. She wore a rabbit costume for trick-or-treating and has only been seen in this outfit.