In her will she left her three goldfish "children" Cheddar, Extreme Cheddar, and Cool Ranch in the care Bertram.
She is last mentioned in Rossed at Sea Part 1, when Zuri recalls her with a hint of nostalgia and admitted that she knows now that she was always imaginary.
- New York, New Nanny
- Zombie Tea Party 5
- Zuri's New Old Friend
- Star Wars
- The Princess and the Pea Brain
- World Wide Web of Lies
- The Secret Life of Mr. Kipling
- rossed at Sea Part 1
- She didn't really like Jessie as stated in "World Wide Web of Lies".
- She liked to have tea parties.
- In The Secret Life of Mr. Kipling, Luke once said that she looked like a manatee. Zuri said that's why Millie didn't like Luke.
- According to Zuri she was overweight.
- Despite her name usually being spelled with y, her name is instead spelled with an ie.
- She was good friends with Chubby the Bear.
- In The Secret Life of Mr. Kipling, we learn that she secretly married a centaur and they produced 3 baby fish, (Cheddar, Extreme Cheddar, and Cool Ranch), who she trusts in the care of Bertram.
- Millie passed away by being stabbed by a swordfish, because she owed money to Lenny the Loan Shark.
- In "The Princess and the Pea Brain," she has blonde, curly hair.
- She has a coconut bra that makes her have weird tanlines.
- In The Secret Life of Mr. Kipling, Zuri said that she is fat, but in The Princess and the Pea Brain she is thin.
- In her testament she left Emma her favorite watch and Jessie her second best coconut bra even if she didn't like her.