A spoilt and rude imaginary friend. Duchess is hated by many imaginary friends at Foster's. She bosses everyone around which drives Frankie crazy. She never really treats anyone with respect but herself, and she hates Foster's home, even though she stays there. No one really expects for Duchess to get adopted, but she has been adopted before by a rather od family, who didn't mind Duchess's rude comments. But of course in the end she came back to Foster's. No one really thinks she will change, although they keep hoping for her to be adopted.
