Lois Waller

Lois Waller is a minor character in the Sweet Valley High book series.

Daughter of the dietician

Lois was an overweight girl who was ironically the daughter of the school's dietician. She was described as having shaggy hair and glasses. She was also very shy. Lois didn't belong to any particular clique and even Elizabeth avoided her, as she thought that Lois tried too hard. Yet Elizabeth wasn't overtly mean to her, and was often willing to give her a chance, whereas her sister, Jessica could be (and was) very mean to her and never missed a chance to insult her.

Later in the series, she lost a lot of weight during a crash diet and gained a boyfriend. Though she wasn't as popular as others, she was healthy and very happy, nonetheless.

In the earlier Sweet Valley Twins series, it was revealed in one of the later books, that she was formerly close friends with Janet Howell, Lila Fowler's cousin, and the president of the Unicorn Club. When they went to middle school, their friendship ended.