Nate

Nate is a minor character, only appearing once and being mentioned twice post-appearance.

Meeting Olivia
Nate is sat at a table in trigonometry with Caity and Lia Logan when Olivia Michaels runs in late. He sarcastically comments about Olivia's punctuality., to which he gets a scolding from Caity.

Olivia comments on the teacher being absent from the classroom. After Caity tells Olivia that the teacher went into labor a couple minutes prior to her arrival, Nate makes another comment regarding how hard Illinois makes teachers work:"'Gotta love Illinois...Making pregnant ladies work until they pop.'"Caity scolds him once again and the two, along with Lia, debate maternity leave. The Dean comes in and tells the students that a substitute will be at the school in a few minutes, though the substitute doesn't get there until the period is over.

Absence
Nate isn't heard from or seen again, though he is mentioned when the gang is off searching for Grant Allen after the news of Justine's pregnancy. Rachael suggests calling Nate, to which Lia reminds everyone that Nate was in an accident in which he wrapped his car around a tree. Olivia exclaims sympathy, though Lia maintains that Nate deserved it for being a negative and horrible person.

Later on, when Olivia is visiting Grant in jail, Nate is once again mentioned in passing. Olivia informs Grant that Nate has recovered from his accident and was moved to a special facility in New York for therapy.

Personality
Nate was a very negative and sarcastic person. He often made cynical comments, especially when he first meets Olivia.