Millionaira is a wealthy woman with whom Scrooge falls in love. Sadly for Scrooge, she only wants to marry him for his money. She has an evil side to her that shows when she has plans to deliberately destroy everything which is precious to the household. First, she will send Webby to finish school and the nephews to the military. Second, she will fire Mrs. Beakley and Duckworth. After that, she will be completely in charge of Scrooge's money and household.
- Millionara Vanderbucks is the possible inspiration to Velma Vanderduck, a female business rival of Scrooge's in the the Uncle Scrooge comics. They have similar names and hairstyles and they serve as female duck antagonists to both Scrooge and Glomgold.
- Millionara Vanderbucks bares a resemblance to The Duchess from Hotel Strangeduck.