Sarah's mother is a social worker. She doesn't understand Sarah's preoccupation with beauty, but she still hangs out with her daughter and takes her to the mall. She prefers Abby over the Beautifuls as Sarah's friends, but she doesn't stop her from meeting them. She is supportive of Sarah.
Sarah's father left the family. He was a truck driver, but Sarah doesn't know much about him. He only calls her on Christmas and her birthday.
Sarah's brother is away at college. When Eleanor first turns on and begins speaking to Sarah, she ponders if he would know how she works, as he's majoring in computer science.
Lydia, Jillian, Tabitha, & Emma
Lydia, Jillian, Tabitha, and Emma are known as the Beautifuls, the four prettiest girls in Sarah's school. Sarah wishes to be a part of the group, but she is ignored. However, as Eleanor makes her more beautiful day by day, she is slowly welcomed into the group. When her face is changed, she is invited to sit with them at lunch, and to go to the mall together. The Beautifuls are shown to be rude when they make a mess in the mall and don't clean it up, but Sarah considers it a privilege to just be around them. At school, they make fun of Abby's clothes, and Sarah when she trips. As Sarah is turning into trash, they simply gawk in horror.
Lydia has blonde hair and blue eyes, Jillian has red hair and green eyes, Tabitha has black hair and brown eyes, and Emma has brown hair and eyes.
Abby is Sarah's best friend since kindergarten. She isn't preoccupied with beauty, instead focusing on more educational matters. Sarah doesn't understand why she doesn't want to look beautiful as she could easily do so. Sarah gets into a fight with her over maturity and stops being friends, deciding to try to join the Beautifuls. They soon make up, but Abby disapproves of her joining the Beautifuls. When Sarah is turning into trash, Abby helps her up, and picks up her necklace. Sarah realizes that she is a true friend. She understands that Abby was right, and that she spent too much time caring about her appearance.
She has brown eyes and braces.
Mason is Sarah's love interest. Sarah accidentally dumps salad onto his shirt and hides away from him in embarrassment. However, Mason becomes more interested in Sarah as she becomes more beautiful, until they finally go on a date together. She loves hanging out with him. He has blue eyes.