Trevor Joseph

Personality
At the very beginning of the series, Trevor was kind of a bully, along with his best friend, Mark Kassler. Throughout the course of the first book, readers come to find out that Trevor was mean because he was being abused at home by his older brother. At the end of The Perfect Score, Trevor decides to put his bullying days behind him, and become kinder.

Mark Kassler (Best Friend)
It’s not specified exactly when Trevor and Mark became best friends, but It is comfirmed that they were already friends in the first grade. Mark was Trevor’s sidekick in the bullying that he did, always sticking by his side. Mark tells Trevor that he always comes by to check on him to make sure that he’s still okay after his brother abusing him.

Natalie Kurtsman (Girlfriend)
See also: Trevor and Natalie

At the very beginning of the series, Trevor and Natalie couldn’t stand each other. Trevor never liking what a know-it-all Natalie was, and Natalie never liking what a jerk Trevor was. Although, nearing the end of The Perfect Score, after Natalie isn’t quite so stuck-up and Trevor isn’t such a jerk, the two start to become friends. In The Perfect Secret, the two start to become attracted to one-another and decide to start a relationship at the end of their seventh-grade year, deciding to keep their new relationship a secret.