Eloise is a character based on the books by Kay Thompson from the films Eloise at the Plaza and Eloise at Christmastime. Eloise is a 6-year-old girl who is sometimes very mischievous.


Eloise has two pets, a pug named Weenie, and a turtle named Skipperdee. In Eloise at Christmastime, Skipperdee lies on a record player, spinning, while Weenie wakes up in his little bed, wearing a Santa hat and beard. Then Eloise meets Rachel, Mr. Peabody's daughter, and is deeply befriended. Nanny often tells her off for being "rude, rude, rude", but she does not care.


At times, Eloise can be sarcastic and serious, but she has a reluctant sense of humor when she does something "rude, rude, rude". Nanny sometimes says something three times, as though sometimes Eloise does not understand. She also has a mind of creativity, such as to her room.